Puzzling clues and odd witness accounts create huge challenges for investigators who are trying to solve a girl's murder.

Haunting real-life mysteries dive deep into secrets of murder victims submerged in watery graves.

When a negotiator gets called to a hostage situation, he must determine how to talk the gunman into laying down his weapons before people die.

A detective discovers that he knows a kidnapper personally and that getting the victim back alive now hinges on his relationship with a maniac.

Veteran journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story by featuring the opinions of those closest to the case, including law enforcement officials, the families of the victims and the incarcerated, lawyers from both sides, and first-time TV interviews with convicted murderers.

Veteran journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story by featuring the opinions of those closest to the case, including law enforcement officials, the families of the victims and the incarcerated, lawyers from both sides, and first-time TV interviews with convicted murderers.

Veteran journalist Paula Zahn steps out of the studio and into the field to unravel criminal investigations, tracking the drama of each story by featuring the opinions of those closest to the case, including law enforcement officials, the families of the victims and the incarcerated, lawyers from both sides, and first-time TV interviews with convicted murderers.

When 20-year-old Cindy Sumner vanishes in Toledo, Ohio, a cryptic message lures detectives to Elm Street; in the decaying warehouse ruins, they uncover signs of a twisted obsession and a nightmare that blurs the line between fiction and true evil.

A killer stalks families across state lines, leaving horror behind; after a 3-year-old whispers Mommy's dead, police uncover a massacre on Elm Street; two boys survive; the killer must be stopped before striking again.

Three friends arrive for a haircut - only to find their barber dead, his body sprinkled with a mysterious white powder; as police dig in, one clue stands out: he'd just come into money; was it a robbery - or a betrayal by someone he never saw coming?

In May 2023, an Idaho jury finds Lori Vallow Daybell guilty of murdering her two children, JJ Vallow and Tylee Ryan, and conspiring in the murder of her husband Chad Daybell's ex-wife, Tammy; Jonathan Vigliotti reports.

Criminology Ph.D. student Bryan Kohberger is charged with the murder of four University of Idaho students; in November 2022, Kaylee Goncalves, Ethan Chapin, Xana Kernodle and Madison Mogen are found dead in their home; Peter Van Sant reports.

Shock sweeps through a Washington community when a suburban mother gets arrested for a murder from a decade earlier in Alaska; details of a seedy and sordid past emerge.

When a young family vanishes from their Southern California dream home, friends and family are left with dozens of unanswered questions; authorities suspect they fled the country, until an unlikely source uncovers the truth.

Police investigate the shooting of millionaires Brad and Andra Sachs in their home in 2014 and track a series of clues in a chase to find the couple's killer.

A premiere fishing boat explodes into flames just offshore, stunning the small fishing town of Craig, Alaska; after fighting the flames, state troopers discover the remains of a young family and few clues as to what could have set the ship ablaze.

In 1980, Tim Hack and Kelly Drew go missing from a small Wisconsin town, then their bodies are found in a field; a woman comes forward nearly 40 years later to help solve the so-called "Sweetheart Murders" of Hack and Drew.

One summer night in 2007, the Petit family is woken up by two strangers in their quiet Connecticut home; suddenly, these four family members find themselves being held hostage and in a fight for their lives.

In rural Pennsylvania, an elderly widow's extreme fear of being buried underground leads her to make an unthinkable decision; for years, her small town keeps her secret, but when investigators finally arrive, they uncover more questions than answers.

April shines positivity, growing her TikTok through wholesome family content and manifesting a better future. Things are not always what they seem. After a tragic incident, April's mom gets on TikTok and uncovers secrets that shock everyone watching.

In 2015 Texas, aspiring rapper Daeveion Mangum seeks fame through risky choices, but one decision drags him into a deadly spiral of violence.

Killing comes easily to those with hearts of ice.

April shines positivity, growing her TikTok through wholesome family content and manifesting a better future. Things are not always what they seem. After a tragic incident, April's mom gets on TikTok and uncovers secrets that shock everyone watching.

In 2015 Texas, aspiring rapper Daeveion Mangum seeks fame through risky choices, but one decision drags him into a deadly spiral of violence.

Killing comes easily to those with hearts of ice.

In rural Pennsylvania, an elderly widow's extreme fear of being buried underground leads her to make an unthinkable decision; for years, her small town keeps her secret, but when investigators finally arrive, they uncover more questions than answers.

In 2021, in Newport News, Virginia, postal workers Jacquie Shabazz and Tashara Jackson fall out over an alleged affair, and a simmering feud explodes.

Two cousins go to war over the same woman, with significant consequences.

Hard-working immigrant Gladys Ricart finds love on an N.Y. subway, and she is introduced to a lush world she's never imagined, but her plans for a dream wedding turn into a horrifying nightmare.

Not long after Patrick Brown falls for a woman named Cece, he is plagued by mysterious telephone calls and the creepy sensation that someone is watching him.

After meeting online, Tiana Notice and James Carter find themselves drawn into an increasingly dangerous and ultimately deadly battle of wits.

After the shocking death of Heather Maples, the student community of Murfreesboro confronts the sobering truth that a killer is lurking among them; detectives unlock her cellphone to find a web of potential suspects and retrace her last night alive.

The brutal murder of a successful hair salon owner and mother upends a tight-knit Chicago community; while neighbors whisper about the killer's identity, detectives must break down walls of silence and uncover the plot to slay this local icon.

The untimely death of Melissa Henderson, wife and mother of two, rattles a small Indiana town, but revelations of foul play at her funeral set the rumor mill ablaze; local gossip leads investigators to a riverboat casino, with unexpected suspects.

A missing mother's ransom notes lead to a mad chase and a disturbing twist.

A Texas housewife finds it easier to keep a secret than to live with one.

A couple learns their spicy lifestyle may not be a secret to everyone.

When Lori McLeod falls for a man claiming to be an FBI agent, she feels certain she will always be safe; now, as the end of her life draws near, Lori vows that the murderer who betrayed her family will never become a free man.

As a little girl, Karen Kuzma adores her older brother, then she sees changes in him, she doesn't understand; it never occurs to her that he will become the most infamous serial killer in American history.

When Joshua Hudnall goes off to war, he feels more at home than he ever did around his mother; while Joshua thinks he's escaped his mother's torment, she sets her sights on someone else and destroys their family from within.

For 17 years, Kathy Swanson fears her son, Michael, will harm someone; she tries in vain to convince people that there is something different about Michael, then her worst nightmare comes true.

Ronald and Patty had always seen the signs that their older brother, Bernard Eugene Giles, had a darker side, but when Gene finally let loose the monster lurking inside, they couldn't help but wonder how things had gone so wrong.

A gifted artist is murdered in her home; decades later, her killer reveals what drove him.

In 1984, a serial killer targets young women across America until he abducts a teenager for a nine-day road trip of torture.

In Ohio's Alum Creek, a body in a tub sparks a murder mystery.

After a man's savage murder at home, his wife is in the frame after calling 911, but the truth is more macabre than anyone dared believe; a husband finds his wife with shots to the head.

In 1984, a serial killer targets young women across America until he abducts a teenager for a nine-day road trip of torture.

In Ohio's Alum Creek, a body in a tub sparks a murder mystery.

After a man's savage murder at home, his wife is in the frame after calling 911, but the truth is more macabre than anyone dared believe; a husband finds his wife with shots to the head.

A gifted artist is murdered in her home; decades later, her killer reveals what drove him.

Forty-three-year old Diane Holik is selling her home to start a new life with her fiancé in Houston, then she misses a meeting at work and police are sent to her home, where they find her bruised and lifeless body.

Peruvian immigrant Elizabeth Palomino is a shining light to everyone who knows her, then she is murdered, and police investigate whether there could be more to Palomino's American success story than meets the eye.

Lancaster, Texas is rocked by a brutal triple murder; one victim's diary describes her penchant for picking up hitchhikers, one of whom just may be responsible for this heinous crime.

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State, but when Conrad goes missing, and Ricky later dies under suspicious circumstances, it falls to Conrad's diary to explain the truth about the family.

Taylor Behl is away at college in Richmond, Va. for a mere two weeks and then goes missing without a trace; her diaries point to several possible suspects in what eventually becomes an alarming homicide investigation.

After teenager Candace Hiltz is shot dead in Prison Valley, the police pursue her troubled brother, James; with no evidence against him, the case goes cold until 10 years later when evidence is discovered in a police officer's storage unit.

When Lea Porter goes missing in Prison Valley, her family members set out to find her; their investigation leads to the discovery of the killer's true identity; as the killer evades arrest, Lea's brother devises a plan to make him confess.

When Jim Durgan's body is found in Prison Valley, no one knows why; his estranged wife is drawing a blank and his out-of-state girlfriend can't explain it; what follows is a murky investigation that unravels a sinister murder plot.

An attacker beats an elderly Vietnamese couple to death and stuffs them inside their closet. Detectives uncover bizarre evidence that points to a sinister plot of unpaid debt, a bad luck curse, and deadly betrayal.

Investigators initially suspect a demonic sacrifice when they find a mother executed in an abandoned building; a bizarre video confession and a series of strange interrogations expose an evil conspiracy concocted by those closest to the victim.

Detective Ryan Jorstad follows a digital trail of evidence after police find a man shot and robbed in his own truck; as he uncovers a series of messages, he reveals a perpetrator who will stop at nothing to protect his identity.

On April 3rd, 2017, Assistant Chief Deputy Clint Greenwood is shot dead at point-blank range at the Harris County Courthouse outside Houston, Texas; no eyewitnesses, but maybe security cameras lead them to Clint's killer.

A family's nightmare begins in September 2014 when 8-year-old Hiawayi Robinson leaves her apartment to play but never returns; the desperate search to find her leads investigators to surveillance footage that sends shockwaves through the community.

When a young mother of two is found brutally murdered at home, suspicion falls on her friends; detectives zero in on multiple suspects who tell different stories, and they don't know who to trust.

In 2017, Chinese exchange student Yingying Zhang mysteriously vanishes from the University of Illinois campus; police and the FBI turn to surveillance footage to uncover the shocking and sinister reality.

After leaving for school, 15-year-old Sierra LaMar disappears without a trace; surveillance footage helps reveal if it was a runaway or something worse.

When 56-year-old Andy McGuffee turns up murdered in his burnt-out home, the Oklahoma State Bureau of Investigation looks to surveillance footage to zero in on their suspects. It reveals the shocking truth of what happened to Andy.

A gifted artist is murdered in her home; decades later, her killer reveals what drove him.

Police race to find a girl who mysteriously vanished on her way to school.

A woman's crusade to teach children to read may have led to her murder; police ultimately realize their only hope of finding an answer is to follow the clues left behind by the victim.

A gifted artist is murdered in her home; decades later, her killer reveals what drove him.

Police race to find a girl who mysteriously vanished on her way to school.

A woman's crusade to teach children to read may have led to her murder; police ultimately realize their only hope of finding an answer is to follow the clues left behind by the victim.

When 56-year-old Andy McGuffee turns up murdered in his burnt-out home, the Oklahoma State Bureau of Investigation looks to surveillance footage to zero in on their suspects. It reveals the shocking truth of what happened to Andy.

Michele Reiter bounces back after a failed marriage and a troubled romance, then she goes missing after agreeing to go on a date with a new friend she has met on Facebook.

Recovering from an abusive relationship, a girl looks for love on a popular dating site.

Amanda Perrault's dream move to a lake house with her husband and his young daughter turns into a nightmare; a campaign of abuse and terrifying home invasions lead to murder; a sheriff must outwit a calculating killer and bring justice.

When Mandy meets Paul online, he quickly moves to Kentucky so they can marry; love soon turns to hate when his controlling behavior turns murderous.

Jessica Jaramillo escapes her abusive ex-husband, Chad Graves, but a joint custody agreement for her children means he will always be in their lives; his increasingly obsessive behavior reveals he is not who he presents himself to be.

When Stacy Malman and Robert Feldman fall in love, it's a dream come true; behind closed doors, life becomes a living hell; one night, a knock at the door forces the couple to confront the truth and triggers a series of events ending in horror.

Caroline Nosal, a 24-year-old grocery store worker, befriends co-worker Christopher O'Kroley, but she soon complains to store management about O'Kroley's behavior leading to a tragic outcome.

When Andrea Farrington meets fellow employee Alex Kozak, she feels that romance could be on the horizon, then Farrington's hopeful feelings are replaced by suspicion and fear, leading to a final rejection that has fatal consequences.

Alisha Bromfield's supervisor, Brian Cooper, promotes her to team leader, but his motives are not entirely pure; Bromfield stands her ground, letting Cooper know she doesn't want a relationship beyond a professional one.

Kerri Harris and her friend discover a camera secreted in the restroom at work; while police examine the evidence, Harris is stabbed to death in her office with her co-workers just a few feet away.

When a single man buys a home in a rural community, he becomes fast friends with his neighbor until a minor parking issue sets them at odds; police are soon summoned for everything from horse manure to death threats.

A beautiful hamlet is home to a resident regarded as a pillar of the community; in reality, he is a twisted criminal bent on ruling the kingdom he has built and all who live in it; when his world crumbles, his retribution is violent beyond belief.

When a resident revives an HOA to beautify her community, some neighbors are unhappy, believing the organization is fraudulent; tensions escalate when liens are placed on the house of a couple unwilling to pay, ending in a suburban shootout.

A mother and daughter upscale their lives when they move into a beautiful suburban community; their next door neighbor takes an instant dislike to them and tensions rise until a vicious murder is caught on home video.

A bachelor is welcomed into a neighborhood, but things go south when he starts disputing the property lines; the warring parties film each other extensively, but the cameras aren't running when violence erupts.

A peaceful suburb turns upside down when a family learns that the neighbor has kept a secret wife locked in his home for years; things escalate when the family helps her escape with her baby, leading to a bitter feud that ends in terrible bloodshed.

A young family builds their dream home in the Kentucky Hills, but their slice of heaven turns into a hellish experience for the quiet couple living next door; a dispute over a shared road leads to fireworks, fury and cold-blooded murder.

April shines positivity, growing her TikTok through wholesome family content and manifesting a better future. Things are not always what they seem. After a tragic incident, April's mom gets on TikTok and uncovers secrets that shock everyone watching.

In 2015 Texas, aspiring rapper Daeveion Mangum seeks fame through risky choices, but one decision drags him into a deadly spiral of violence.

When Adrienne Pollack dies, her family suspects there's more to the story than meets the eye; as they dig to find the truth, they uncover that Adrienne was hiding a dark secret which, if true, could take Hugh Hefner down.

April shines positivity, growing her TikTok through wholesome family content and manifesting a better future. Things are not always what they seem. After a tragic incident, April's mom gets on TikTok and uncovers secrets that shock everyone watching.

In 2015 Texas, aspiring rapper Daeveion Mangum seeks fame through risky choices, but one decision drags him into a deadly spiral of violence.

When Adrienne Pollack dies, her family suspects there's more to the story than meets the eye; as they dig to find the truth, they uncover that Adrienne was hiding a dark secret which, if true, could take Hugh Hefner down.

A young family builds their dream home in the Kentucky Hills, but their slice of heaven turns into a hellish experience for the quiet couple living next door; a dispute over a shared road leads to fireworks, fury and cold-blooded murder.

As a child, Deon knows her stepfather, Edward, is deeply controlling; he instills fear into the family with his rage fits; after Deon's mother finally leaves him, Edward tries to regain control of the family with a plan to eliminate them all.

Misty fears her violent, cruel and manipulative brother, Patrick Boggs; his ex-girlfriend Lena once loved him but now fears him too; they both feel lucky to have escaped him with their lives; they suspect that others were not as fortunate.

When Jeff Skelton hears rumors of infidelity, he will do whatever it takes to keep his family from being pulled apart.

Newlyweds seeking adventure set sail on a trip around the world; the honeymoon comes crashing to reality for Don when he heads to the one remote island where a serial killer could be in hiding.

Two couples arrive on the same remote and uninhabited island in the Pacific looking for paradise, but only one couple leaves; the FBI deciphers what happened years later.

Florence and Mark Unger love nothing more than vacationing at the lake with their two boys; life is perfect until a sports injury pulls Mark into the depths of painkiller addiction; to keep her family afloat, Florence does whatever is necessary.

In Mooresburg, Tenn., residents are shocked to learn that beloved school teacher 79-year-old Margaret Jack Sliger has been murdered on her farm; Hawkins County detectives are charged with finding Sliger's killer and bringing justice to the community.

When two young women fail to return home after a run to the local drive-thru, their concerned parents immediately start searching for them; however, it will be a fisherman who gives police their first clue that something evil has happened.

A nightmare wreaks havoc on the village of Armada, Mich., where 14-year-old April Millsap is found murdered on the community's most popular bike trail; very little evidence leaves investigators running down clues to bring a monster to justice.

In Cleveland, Okla., the townspeople experience heartbreak when their esteemed sheriff is gunned down in the night; as the community wrestles with its safety, law enforcement personnel are determined to find justice for their fellow officer.

Beloved wife and cardiac nurse Lorie Kirkley goes missing from the safety of her home in what appears to be a burglary gone wrong; several strange clues are found.

Joy Dishneau plans on becoming a small business owner in the Ozarks, but she is found murdered in her own shop, and all of her employees become suspects.

Bride-to-be Patricia Richmond is found bound and murdered at her future in-laws' home in the resort town of Steamboat Springs, Colo.

After locals smell charred meat, police find burned remains in an abandoned mining pit in the town of Hibbing, Minn.; before they can investigate who committed the crime, they must first identity the body.

The town of Higginson only has two full-time police officers, and one is gunned down while on duty.

Mindy Morgenstern, a college student and waitress, is found strangled and stabbed in her own apartment; family, friends and the entire town of Valley City, N.D., help law enforcement identify the monster who committed this violent crime.

In Madison, Wis., Andrew Nesbitt is found murdered on his 46th birthday; with no witnesses, investigators turn to surveillance cameras in bars and taxi cabs and on street corners to track down his killer.

The body of 26-year-old Celina Peterson is found in an alley in the South Park neighborhood of Seattle; when police recover surveillance footage from across the neighborhood, they begin to unravel the truth behind her murder.

Twenty-seven-year-old Jessika Kalaher is found strangled in her car in Cedar Park, Texas; with Jessika's wallet and car keys missing, detectives turn to security cameras in the hope of finding out who killed her.

In San Antonio, Christopher Duncan leaves his apartment never to return again; police have little to go on until surveillance footage offers up the possible identity of a dangerous killer.

The body of 26-year-old Celina Peterson is found in an alley in the South Park neighborhood of Seattle; when police recover surveillance footage from across the neighborhood, they begin to unravel the truth behind her murder.

Twenty-seven-year-old Jessika Kalaher is found strangled in her car in Cedar Park, Texas; with Jessika's wallet and car keys missing, detectives turn to security cameras in the hope of finding out who killed her.

In San Antonio, Christopher Duncan leaves his apartment never to return again; police have little to go on until surveillance footage offers up the possible identity of a dangerous killer.

In Madison, Wis., Andrew Nesbitt is found murdered on his 46th birthday; with no witnesses, investigators turn to surveillance cameras in bars and taxi cabs and on street corners to track down his killer.

Police in two cities receive a series of bizarre 911 calls from a serial killer confessing his crimes; the man becomes known as the Weepy Voiced Killer due to his strange, whining voice.

A terrified woman tries to give police clues in a harrowing call, then police find her body in the river, and they discover a stomach-churning truth about a killer who's been a predator for years.

After Julie Smith reports being sexually assaulted, Lt. Joe Kenda and his Sex Crimes Unit realize her assault resembles other attacks on the east side of town; it's a race against time to catch a serial rapist before he strikes again.

Lt. Joe Kenda has his doubts after a man steps forward claiming to have killed Keith Andrews in self-defense; Civil Rights activist Gretchen McRae is found dead in her home, then authorities make another shocking find on the premises.

A young man is found gunned down, leading Lt. Joe Kenda to delve into his troubled past and his connection to the world of rare coins; a mother of five is shot in the head, and it's up to Kenda to uncover the truth behind her untimely death.

Shot outside an auto parts store in broad daylight, Antoine McKenzie leaves behind a final message written in her own blood for Lt. Joe Kenda to puzzle over as his only lead.

When a woman fails to come home from work, her daughter knows something terrible must have happened and reports her missing; as the investigation unfolds, Lt. Joe Kenda realizes he could be dealing with a fledgling serial killer.

On the night before Halloween, a real-life nightmare unfolds as a young man is found clinging to life; the case takes a dark turn after Lt. Joe Kenda learns there's a second victim somewhere in the woods.

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

In the Miami suburbs, a hard-working mother from Trinidad vanishes into thin air; detectives Danny Smith and Jonathan Zeller soon uncover her secrets but then are stalled until they come up with a highly unusual way to smoke out the perpetrator.

A series of murders puts the residents of a small town on high alert; as bodies continue to pile up, the urgency escalates, pitting Detective Dave Frankel in a race against time to capture a deranged spree killer before he claims his next victim.

After multiple homicides occur along Virginia's Colonial Parkway, authorities task Det. Danny Plott with finding a serial killer; investigators uncover a pattern at the crime scenes about the killer's method, becoming the key to solving the case.

The unsolved rape, mutilation and murder of young G.I. Darlene Krashoc has haunted Joe Kenda in the years since he turned in his gun and badge. Until a crack team of cold case cops uses Kenda's groundwork to set a trap for a monster hiding in plain sight.

The unsolved rape, mutilation and murder of young G.I. Darlene Krashoc has haunted Joe Kenda in the years since he turned in his gun and badge. Until a crack team of cold case cops uses Kenda's groundwork to set a trap for a monster hiding in plain sight.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

A newborn girl is kidnapped, leaving her mother in anguish and police scrambling to find her; as days go by with no sign of the baby or demands for ransom, Sgts. Joe Kenda and Robert Sapp fear she's been sold on the black market or worse.

When 71-year-old Orville Head passes away, no one questions the death of an elderly man with health problems, then a tip comes in suggesting foul play, and Lt. Joe Kenda must exhume the deceased man's body to reveal the truth.

Pepita Redhair, a 27-year-old Navajo woman, goes missing after her mother drops her off at her boyfriend's house in Albuquerque, N.M.; the family takes matters into their own hands to find her, even enlisting the help of a medicine man.

On February 24th, 2021, Ciera Breland, a successful lawyer and new mom, disappears after she and her husband, Xavier, visit his mother in Georgia; as Ciera's family and investigators try to find her, they realize her perfect life isn't what it seems.

Daniel Robinson arrives at his work site in the desert in Buckeye, Arizona and reportedly acts strangely just before taking off in the middle of his shift, never to be seen again.

When police near Myrtle Beach discover an abandoned car at a boat landing, they surmise its owner, 20-year-old Heather Elvis, has vanished; they soon discover she's been engaged in a love triangle with a married man.

Experts look at a subset of psychopaths who are motivated by their heightened sexual urges and fantasies; this subset of offenders doesn't just enact physical violence but sexual violence toward their victims and is known as the sexual psychopath.

A husband becomes the prime suspect when his wife goes missing as police discovers his checkered past; lacking a body or evidence of foul play, detectives hope to gain a confession from a man they realize might be a cold-blooded psychopath.

When being interviewed by police, psychopaths often use manipulation to thwart the investigation; experts explore the anatomy of the key manipulative tactics of psychopaths and how they try to utilize them for their own sinister gain.

Behind closed doors, India Mackey's relationship with her boyfriend is painful; one day after her 20th birthday, India learns what he is truly capable of.

Elena falls head over heels for Brandon, but his domineering behavior quickly escalates, creating tension and conflict in their relationship.

Ashley's new confidence enrages estranged husband Terry, who stalks her to a secluded lot, ready to reclaim control in the deadliest way.

Andreen has always had her sights set on success, and thinks she's found her ideal partner when she meets Andre; the more successful Andreen gets, the more threatened Andre becomes, and finishing in second place is not an option for Andre.

After years of suffering in silence, Francisca Quintero finally leaves her violent husband, but for Javier Bahena, there is no such thing as a divorce; his wife has a choice: stay with him or die.

A CEO at just 29, Jenea Harvison supports her husband as his dreams of becoming a football player falter; living in his wife's shadow soon proves too much for Roy Harvison, and the price will be more than one life.

When a tub floats to the surface of Ohio's Alum Creek Reservoir with a human leg inside, police launch a disturbing murder investigation; footage reveals the killing, but the twisted motive stays as murky as the water that hid the crime.

In 1984, a serial killer targets young women across America until he abducts a teenager for a nine-day road trip of torture.

Police race to find a girl who mysteriously vanished on her way to school.

After police find a young mother bound and murdered in her bedroom, her family challenges police to bring a heartless killer to justice.

In 1984, a serial killer targets young women across America until he abducts a teenager for a nine-day road trip of torture.

Police race to find a girl who mysteriously vanished on her way to school.

After police find a young mother bound and murdered in her bedroom, her family challenges police to bring a heartless killer to justice.

When a tub floats to the surface of Ohio's Alum Creek Reservoir with a human leg inside, police launch a disturbing murder investigation; footage reveals the killing, but the twisted motive stays as murky as the water that hid the crime.

Twenty-seven-year-old beauty Sherri Jackson vanishes, leaving behind a blood-smeared apartment; as investigators launch a frantic search for Sherri, they discover she was harboring a dark and violent secret that may have gotten her killed.

In 2014, the scorched remains of a house fire reveal two female victims, Robin Aldridge, 58, and her daughter, Mani, 17; when investigators dig deeper into the women's lives, they uncover a secret online relationship that led to tragedy.

After a young woman vanishes on her way to work, police desperately follow a trail of videotaped clues they hope will solve a complex mystery; the evidence found inside her car could be the key to solving the brazen abduction.

Hunters found Army veteran Maribel Ramos's body in a remote area, sparking a hunt for her killer; investigators uncovered a fatal dispute with her roommate over unpaid rent.

A gunman shoots a hero fireman dead in his own driveway; police focuses their investigation on the unusual firearm used to commit the crime and an odd trail of clues left behind by the victim himself.

Police watch the video of a young woman closing up after her shift at a gas station convenience store; everything seems normal until, in one moment, she is there and in the next, she is gone, never to be seen again.

Life for Alabama newlyweds Syble and Earnie revolves around church and family, but a freak accident and a pair of wandering eyes threaten to drive this couple into an unholy trinity of betrayal, infidelity and murder.

Everyone is happy when Miranda marries Sam because she's pretty and he's cute and friendly, but Miranda's spending veers out of control and tears the couple apart until one of them looks outside the marriage and finds nothing short of murder.

Gail and Stephen Dews have it all: a happy marriage, a beautiful house and healthy children, but a family tragedy and a gambling addiction rips their lives to shreds, proving that nothing is what it seems.

In Pueblo, Colo., police are called to a horrific scene where a fire reveals the charred remains of a body; as detectives work to track down the killer, their investigation uncovers cracks in the foundation of a large, multi-generational family.

While carrying out a welfare check on Thanksgiving Day, police discover a triple homicide; to unmask the killer, detectives must uncover a victim's secrets and examine a hidden world of disinheritance, rage and dark accusations.

While performing a welfare check, police stumble across a brutalized body hidden inside a garden shed; while this is a shocking find, another family member had perished on this same property just two days prior to the welfare check.

When a beautiful student meets an esteemed psychologist, she believes she found her soulmate; when he suddenly disappears, she discovers he lived a bizarre double life in Detroit's most notorious neighborhood.

A single father finally finds a love with whom he can grow old. However, just months after they've wed, she depletes his retirement savings, and he learns he's only the latest in a string of victims. When he files for divorce, things get much worse.

TV news anchorwoman Marisa Burke and her seemingly perfect husband Mark Kandel become the eye of a media storm when Mark's twisted double life starts making headlines.

When Isaiah Carvalho meets NYPD officer Valerie Cincinelli, he thinks his dreams have come true; he soon learns she's not only cheating but also hired a hitman to kill him.

A young mother's unexplained illness shocks doctors when tests reveal extreme poisoning, prompting investigators to examine those closest to her life as suspicion grows around her inner circle. Anne-Marie Green reports.

Hashim's small-town fame inspires a local soccer team 'Hashim United.' One day a friend's favor pulls him into a world he cannot escape.

In 2022, police find a young man murdered in his home in Texas, and an investigation snags a beautiful former Hooters waitress and OnlyFans model.

When a California teen disappears, the whole town feels on edge; as suspicion turns inward, her closest friends begin to wonder if the danger has been beside them all along, hidden in the familiar faces of classmates with something dark to hide.

Hashim's small-town fame inspires a local soccer team 'Hashim United.' One day a friend's favor pulls him into a world he cannot escape.

In 2022, police find a young man murdered in his home in Texas, and an investigation snags a beautiful former Hooters waitress and OnlyFans model.

When a California teen disappears, the whole town feels on edge; as suspicion turns inward, her closest friends begin to wonder if the danger has been beside them all along, hidden in the familiar faces of classmates with something dark to hide.

A young mother's unexplained illness shocks doctors when tests reveal extreme poisoning, prompting investigators to examine those closest to her life as suspicion grows around her inner circle. Anne-Marie Green reports.

Dolores and Maria Ross' longstanding sibling rivalry escalates out of control, eventually ending in bloodshed.

Ed and Minnie Maurin believe in kindness above all else, then evil strikes the sweet couple; police must navigate a long and winding road of secrets and deception to bring the elderly couple's killers to justice.

Rebecca and Ken Pierce film their lives and the raising of four children in rural Oklahoma; the family is haunted by a specter of addiction and violence spanning generations.

Diana Lovejoy and husband Greg Mulvihill live happily in Southern California; when accusations rock the marriage and a mysterious phone call ends with an attempted murder, police uncover the shocking truth behind the couple.

Jason and Lindsey Lee change their lifestyle to reignite the spark in their marriage, but it comes with deadly consequences.

When single mom Michelle Chaffin finds love, it seems like the perfect case of opposites attract; but when Michelle vanishes without a trace, police uncover a terrible jealousy revealed through a shocking confession that leaves her family reeling.

Thirty-nine-year-old Melissa Lewis becomes a partner at a prestigious law firm, then she is found murdered, and police must scour her most intimate professional and private relationships to find her killer.

Single mother Christina Sanoubane leaves her abusive boyfriend to move into her own apartment, then, four days later, Sanoubane's toddler tells a visitor to the apartment that his mother is dead.

Forty-year-old Michael Reese is a loving husband and son, who doesn't seem to have an enemy in the world, then his wife, Cindy, comes home to find him shot dead, forcing police to grapple with the secrets they uncover, one of which led to his murder.

Property developer Robert Pann and trainee nurse Bernice Gray seem like the ideal match, but buried secrets are about to end this picture-perfect romance.

Raised in a big Mormon family, Ashlee Harmon grows up wanting that same kind of lifestyle; she marries her college boyfriend, Emmett Corrigan, and raises five kids while he opens his own law firm, but dirty secrets soon trigger a deadly showdown.

In Snellville, Ga., Heather Strube has a great life of working in the family floral shop, raising her toddler son, and looking forward to a bright future with her new boyfriend; then, a Sunday trip to the shopping center shatters everything.

An officer responds to a 911 call placed by a robber on the lam who feels compelled to turn himself in; when the officer arrives at the scene, the criminal confesses to much more than breaking and entering.

A young woman calls 911 because her boyfriend is missing and there is a pool of blood in their apartment; evidence leads investigators to the couple's roommate, a manipulative psychopath hell-bent on revenge, along with his loyal best friend.

A troubled 29-year-old son is kicked out of his parents' house after spending the family fortune on a webcam model; his mother, father and brother are found murdered, the young man insists he's innocent.

A 17-year-old steals a gun and begins a horrifying road trip; he murders two gas station attendants in cold blood, laughing as he shoots his victims in the face; when officers catch up with him, a haunting portrait of a burgeoning psychopath emerges.

A lone gunman shoots a young man and woman on their way home from the gym where they work; while interrogating a suspect, detectives learn that this is no random attack but the twisted plan of a deranged psychopathic stalker.

A failed actor returns home, ready to take out his rage on the weakest members of society; after killing four people, a chance encounter with police leads to his downfall; the interrogation room becomes the stage for this killer's final performance.

A college student disappears at the start of his freshman year without a trace, leaving his family and his girlfriend reeling; when authorities look to his best friend for answers, they uncover a love triangle gone wrong.

Burlington Police get a call that a man has killed his girlfriend; they arrive at the home to find the man calm while his girlfriend's body lies nearby; he explains that he has other victims, revealing a history of psychopathic sexual deviancy.

A woman's reported accidental shooting leaves her family uneasy for years until new surveillance evidence surfaces prompting investigators to revisit what may have happened inside that bedroom. Anne-Marie Green reports.

An abusive lover hunts the Dallas suburbs for his ex; he unleashes his revenge on residents.

When police find a gold SUV abandoned near the Lewis River, they suspect foul play. Soon after, a kayaker spots a body in the Washougal River, shattering the calm of Camas by exposing a deal gone wrong between neighbors ending in a brutal murder.

Haunting real-life mysteries dive deep into secrets of murder victims submerged in watery graves.

An abusive lover hunts the Dallas suburbs for his ex; he unleashes his revenge on residents.

When police find a gold SUV abandoned near the Lewis River, they suspect foul play. Soon after, a kayaker spots a body in the Washougal River, shattering the calm of Camas by exposing a deal gone wrong between neighbors ending in a brutal murder.

Haunting real-life mysteries dive deep into secrets of murder victims submerged in watery graves.

A woman's reported accidental shooting leaves her family uneasy for years until new surveillance evidence surfaces prompting investigators to revisit what may have happened inside that bedroom. Anne-Marie Green reports.

A woman's body is found strangled and partially nude off the side of a Connecticut country road; investigators apprehend a suspect in her murder, only to discover he's a prolific serial killer, responsible for the rape and the murder of eight women.

A 50-year-old woman is found dead in her home, and all that's left behind is a piece of paper that has "chase me" written on it; when detectives uncover the killer, they discover they have come face-to-face with a remorseless psychopath.

After coming home to find her parents on the floor bleeding, a woman's younger brother claims their father shot their mother before turning the gun on himself.

A charming 20-year-old wants to help authorities with a murder investigation; he claims to have met one of the three victims and says he has no knowledge of the crime, but detectives suspect otherwise.

On a freezing Minnesota night, a shooting leaves a young police officer fighting for his life by the roadside; as his wife awaits his fate, a heart-stopping manhunt ensues.

Kay Weden finds her mother murdered inside her home; then, investigators discover the frozen remains of Weden's boyfriend in the Blue Ridge Mountains.

After a North Dakota blizzard, a man visits his parents, only to find them murdered.

A woman and her two young children go missing, then two other boys also disappear, prompting investigators to ask whether there's a serial predator on the loose in the wintry landscape of rural Missouri.

When 18-month-old Devon Manderach's body is found in a park outside Philadelphia, police suspect her parents; when her father calls looking for both the toddler and her mother, police learn the case is more horrific and tragic than they imagined.

When Ellen Robb's husband finds her murdered in their quiet suburban Philadelphia home, evidence points to a robbery gone wrong; however, police dig deeper into the couple's life, and they learn the motive may be far more sinister.

When Helen Bernstein is found dead in the bathtub of her Chestnut Hill high-rise, she appears to have died of natural causes; when an autopsy reveals she was strangled, detectives ask who would want Helen dead and why.

The city of Philadelphia is in shock after a hard-working mother is gunned down on a Center City sidewalk; detectives work around the clock to catch the killer, who turns out to be far more dangerous than they could have ever imagined.

After a man calls 911 to report being stabbed and a house on fire, police find Ron Whiles shot and burned in his home in Lafayette, Ind.; with one victim dead and one clinging to life, detectives question multiple suspects, which leads to one name.

Ida Mae Ford gets shot dead in the middle of a dark street near her home in Macon, Ga.; detectives race to track down the beloved grandmother's elusive killer, and a shocking crime spree ultimately leads investigators to an unexpected suspect.

Akron officers respond to a shooting outside a convenience store; they find Derek Alexander bleeding with a faint pulse, but he doesn't survive; the investigation leads detectives to two cold-blooded killers who stalked and hunted the man.

Noah Kinney is shot dead in a car that crashed outside a home in Akron, Ohio; detectives attempt to determine who did it and race to find an armed killer on the loose; investigators are shocked to discover video evidence that cracks the case open.

Lansing police officers find Donovan Barfield's body riddled with bullets and his apartment ransacked; as investigators race to identify the perpetrator, they uncover a diabolical plan of murder and robbery orchestrated by a trio of reckless killers.

A woman makes a frantic 911 call, saying her neighbor is not breathing and covered in blood; police find 69-year-old Benjamin dead, his house in disarray and money missing; as detectives search for answers, another murder shakes the community.