When single mother Linda Damm goes missing in Lafayette, Colo., police get an anonymous tip telling them where to find her body and who her unexpected killer is.

When Michael's body is found on a local golf course, a dark truth emerges.

A family suffers one tragedy after another as a sister's murder and a mother's crusade for justice combine to drive another sister into a homicidal rage.

After years of struggling with mental health issues, Janece Cook moves in with her elderly parents; then, Janece's father commits suicide, and her younger sister is determined to sever Janece's ties with the family.

The accidental drowning of their two children strains Lonnie and Betty Jo Fowler's marriage to the breaking point; however, after the couple reconciles and moves closer to family, a sister-in-law's suspicions turn violent.

Tensions arise when a new addition to the Finkle family shakes up their peaceful dynamic, but no one can predict the fatal and gruesome results to come.

Twenty-five-year-old artist Tiffany Daniels never makes it home from work, then her car is found abandoned in a parking lot in Pensacola Beach, Fla., launching a desperate search as well as dark speculation about her disappearance.

In December 2017, Brian stops responding to his mother's texts; she decides to file a missing person's report and Detective Massucci finds himself untangling a complicated love triangle involving Brian, which leaves him with more questions.

Eighteen-year-old Zoe Campos disappears after spending a night at home watching movies, prompting investigators to scour her Facebook account to unlock clues.

Successful lawyer and new mum Ciera Breland disappears after she and her husband visit his mother in Georgia. It emerges her perfect life isn't what it seems.

When a young couple goes missing in Eureka, Utah, detectives from neighboring counties work together to track down their killer and, with the help of a highly trained dive team, recover their bodies in an abandoned mineshaft.

In 2021, in a Norman, Oklahoma basement, police unwrap the gruesome contents of a suspicious box.

Police have a puzzle to solve when they find a gifted programmer and a jilted lover at the scene of 62-year-old Kathy Anderson's murder. However, nothing can prepare them for where this investigation will lead.

Deep in the kudzu of Alabama, police get a call about the body of a young man burned beyond recognition; Detective Kevin Palmer turns to the victim's phone records and picks up on a plot to lure the victim.

In 2021, in a Norman, Oklahoma basement, police unwrap the gruesome contents of a suspicious box.

Police have a puzzle to solve when they find a gifted programmer and a jilted lover at the scene of 62-year-old Kathy Anderson's murder. However, nothing can prepare them for where this investigation will lead.

Deep in the kudzu of Alabama, police get a call about the body of a young man burned beyond recognition; Detective Kevin Palmer turns to the victim's phone records and picks up on a plot to lure the victim.

When a young couple goes missing in Eureka, Utah, detectives from neighboring counties work together to track down their killer and, with the help of a highly trained dive team, recover their bodies in an abandoned mineshaft.

A mother is brutally slain in her home, and police collect bizarre evidence they hope will lead to a murderer; a second body turns up, and this Louisiana community fears a serial killer is on the loose.

The community of Bowling Green, Ky., is devastated when a student is assaulted and burned in her college dorm room; after the victim succumbs to her injuries without naming her attacker, police find two suspects who have very different stories.

Single mother Brandi Peters and her three young children are brutally murdered inside their Tallahassee, Fla., home in November 2010; detectives are shocked to uncover a killer who is a real-life monster hiding in plain sight.

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

In 2007, Marilou Johnson's millionaire boyfriend, Roger Blanchard, reports her missing; police have little to go on in their search for the mother of three until a witness steps forward.

On the Northern Cheyenne Indian Reservation, a young mother goes missing after the Fourth of July; when her body is discovered in the woods, the victim's family dig through the memories of their loved one to provide investigators with critical clues.

Sharon Ord and her family leave Scranton, Pa., to start a new life in Florida; then one of them disappears, turning their dream of a new life into a nightmare.

In Ohio, a woman is found stabbed to death in her kitchen after she fails to show up for work; her sister is able to help detectives solve the case after a family heirloom is discovered during the investigation.

In the coastal town of Leland, N.C., a missing woman is found dead in a swamp; as detectives speak with the victim's friends and family, they begin to unravel the truth behind a horrifying murder.

A killer hunts vulnerable women in a quiet California community.

A killer hunts vulnerable women in a quiet California community.

From 1976 to 1977, David Berkowitz terrorizes New York City under his creepy self-given moniker: the "Son of Sam"; he is among the most infamous serial killers in American history.

In 1977, the city of New York is stalked by a seemingly faceless serial killer known as "Son of Sam"; after his final shooting takes him to Brooklyn, a twist of fate and a little luck leads to his capture.

Going inside prison walls to interview evil itself as relatives of killers, along with killers themselves, tell their chilling tales; questions these killers have never been asked before result in powerful, unsettling and contentious encounters.

Gripping narratives that provide an insight into the minds of those connected to notorious killers.

Gripping narratives that provide an insight into the minds of those connected to notorious killers.

Audrey agonizes about why her brother murdered their mother and sister in cold blood.

Dr. Katherine Ramsland interviews Elmer Wayne Henley, the sole survivor of the 1973 Houston mass murders, to unravel his chilling journey from manipulated teen to convicted killer and the truth behind the line between victim and predator.

When Shaquoia and Imani first meet Isiah, they sense his evil; they don't know why their mother would date a man like him; Shaquoia does all she can to protect her siblings from Isiah's rage, but his cruelty and obsession would destroy the family.

Dr. Katherine Ramsland interviews Elmer Wayne Henley, the sole survivor of the 1973 Houston mass murders, to unravel his chilling journey from manipulated teen to convicted killer and the truth behind the line between victim and predator.

When Shaquoia and Imani first meet Isiah, they sense his evil; they don't know why their mother would date a man like him; Shaquoia does all she can to protect her siblings from Isiah's rage, but his cruelty and obsession would destroy the family.

Audrey agonizes about why her brother murdered their mother and sister in cold blood.

A woman's husband is murdered by an intruder wearing a clown mask; after three more victims are killed by a deranged clown, police realize they're dealing with a serial killer.

A woman is found murdered on the Appalachian Trail and her husband is missing, leaving authorities to wonder if he's the killer or another victim, then more bodies begin to appear.

Heidi Firkus calls 911 after her husband claims an intruder is breaking into their Minnesota home; Heidi ends up dead, and the case remains cold for 10 long years until a new investigator takes a fresh look.

Alisa Mathewson suffered a 55-hour ordeal that almost cost her life at the hands of her estranged husband, Trevor Summers; she shares her harrowing experience of being kidnapped and sexually assaulted with Peter Van Sant.

First responders find Kristen Trickle clinging to life and attempt CPR, but she does not survive; the coroner rules her death a suicide, but police and prosecutors are skeptical and charge her husband with murder.

Jeffrey and Jeannine Glanda appear to have it all; when half of the partnership craves control more than love, it sets in motion a deadly plot, ending with a suspicious car accident and a watery grave.

As gentle giant Randy Ferguson approaches his 40th birthday, his sisters worry that he'll never have a family of his own; that all changes when Randy meets single mom Angela Phillips; but the beautiful life they build together hides an ugly secret.

When outgoing Beth Spaulding and shy Jason Risenburg meet, it looks like a match made in heaven; however, illness and bad luck trigger a tornado of lies and deception that tears them apart.

A fun-loving couple cultivates close relationships with their grown daughters, then the mother is bludgeoned to death in her home; no one suspects that the unthinkable could be true, but video doesn't lie, unlike guilty people.

In Moscow, Idaho, an elderly couple frantically performs CPR on their young neighbor after a pop of gunfire interrupts their bedtime routine; investigators follow fresh footprints from the scene, only to learn the killer may already be behind bars.

Family and friends are concerned when Phillip Brewer and Jody Fortuna go missing from Gillette, Wyo.; eventually, the horrifying truth comes to light.

When law enforcement finds local electrician James Nibbe dead after a home invasion, they must dig beneath the surface of Lake Crystal, Minnesota, to root out the killer.

When Harlem Globetrotters trainer Tom Bashline is murdered, the town of Frederick, Colo., is stunned; detectives question his fiancee, her son and a burglary suspect, but as the investigation deepens, secrets emerge about the local celebrity.

They say fences make good neighbors, but sometimes they can make dead ones.

On a quiet cul de sac, a contractor helps his neighbor rent the home beside him; unwittingly trapping himself between an increasingly unhinged presence on one side and the man's hostile parents on the other.

An apartment-dwelling family finds their peace and quiet shattered when a loud neighbor moves into the unit directly overhead; the conflict engulfs both sides resulting in flying fists, drawn weapons, and a man left bleeding out in the hallway.

Byron and Michele Wright overcome broken homes to find solace in one another, but when their blissful union falls apart and a new man arrives on the scene, it unearths violent secrets and a shocking truth.

In Winona, Mo., Jason and Stephanie McClurg suffer a series of misfortunes putting their marriage under an enormous amount of pressure, then first responders find Stephanie dead in the couple's trailer.

A single mother of three is found brutally stabbed in her home.

An idyllic marriage is disrupted when wife Theresa Lockhart vanishes.

In Winona, Mo., Jason and Stephanie McClurg suffer a series of misfortunes putting their marriage under an enormous amount of pressure, then first responders find Stephanie dead in the couple's trailer.

A single mother of three is found brutally stabbed in her home.

An idyllic marriage is disrupted when wife Theresa Lockhart vanishes.

Byron and Michele Wright overcome broken homes to find solace in one another, but when their blissful union falls apart and a new man arrives on the scene, it unearths violent secrets and a shocking truth.

The brutal murder of 19-year-old Jessica Chambers, found severely burned on the side of the road in rural Courtland, Miss., sends shock waves across the nation as the twisting and turning hunt for her killer creates a rift in her community.

As the trial unfolds in the fiery murder of 19-year-old Jessica Chambers, a shocking turn of events threatens to tear apart her family and the community; everything changes when another brutal crime is discovered in Louisiana.

The mysterious details of one teenager's murder may lead police to solve two brutal murders committed by the same deadly predator.

Will a hidden message discovered on the body of a murder victim be the key to finding the young woman's killer?

A bicycle patrol officer finds the body of a young woman who was brutally killed in a parking lot; police investigate whether it was a random predator or if she knew the victim.

Josh Richards is shot execution style in the middle of a nightclub in Appleton, Wis.; when detectives delve deeper into the investigation, they discover a camera has the potential to reveal the identity of a killer.

Police investigate the disappearance of a 22-year-old nursing assistant; they uncover video surveillance of the woman being abducted from a Philadelphia street.

Twelve-year-old Alajawan Brown is gunned down outside a 7-Eleven in Skyway, Wash., which is only a block away from an earlier shooting; only CCTV can help piece together the puzzle pieces and find Alajawan's killer.

In Groton, Vermont, a young man with a developmental disability leaves work and is never seen again; with no leads in sight, investigators must rely on surveillance footage to piece together the truth behind Christopher Gray's disappearance.

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.

A celebratory night turns deadly for the Whitaker family as they are gunned down at home; when investigators uncover a conspiracy, it will test one man's ability to forgive as he fights to save the criminal mastermind from the death penalty.

So-Cal surfer and tech entrepreneur Chris Smith dreams of making a tidy sum of money and surfing off into the sunset; it seems as though his dreams have come true, but all is not as it appears.

Maya Burgess always knew her brother, Stevie, was trouble; after he holds a butcher's knife to her brother's throat and threatens to shoot her at her wedding, Maya knows he is dangerous.

Victoria and Christine Lisowski live in fear of their mother, Sungnam Kwon-Lisowski; they never imagine that this Christmas, they'll feel lucky to survive the holiday and their mother's crazed vengeance.

Jennifer Winter accepts Cristobal Palacio's marriage proposal out of necessity; she believes that he understands that it is a marriage of convenience, not love; he makes her his prisoner, and she realizes escape will come at a terrible cost.

When Gwen Bailey marries Norman Starnes, she counts herself lucky to land the most eligible bachelor in town; years later, she realizes she never really knew him at all and becomes his unwilling accomplice.

Vickie Webb's son is accused of absolute evil, and she isn't surprised.

People recount their horrifying true stories about living side-by-side with sociopathic friends or family who go on to commit heinous crimes.

Shirley Merritt is devoted to her family, especially her youngest son, Richard, but he wants to have the good life by any means possible; when bad choices lead to a prison sentence, Richard makes a deadly decision, and his secret is exposed.

Young parents Gary and Tasha Bentley are living the good life; they've got high-paying jobs, a nice house and regular vacations to the tropics, but just five years into their marriage, someone's plotting an exit strategy that ends with a bullet.

People recount their horrifying true stories about living side-by-side with sociopathic friends or family who go on to commit heinous crimes.

Shirley Merritt is devoted to her family, especially her youngest son, Richard, but he wants to have the good life by any means possible; when bad choices lead to a prison sentence, Richard makes a deadly decision, and his secret is exposed.

Young parents Gary and Tasha Bentley are living the good life; they've got high-paying jobs, a nice house and regular vacations to the tropics, but just five years into their marriage, someone's plotting an exit strategy that ends with a bullet.

Vickie Webb's son is accused of absolute evil, and she isn't surprised.

After a savage beating that nearly kills a young mother, Omaha investigators learn that she's not the only victim; they launch a relentless search for the killer and quickly realize their most crucial clue might die with their victim.

A landlord in Birmingham, Ala., approaches his rental home to inspect a broken window when he suddenly hears a baby crying, but what he discovers inside will haunt two families for the rest of their lives.

In 2008, a real estate developer finds his glamorous wife Kay Wenal slashed from ear to ear in her Georgia home; with few clues in the case, investigators quickly learn that all is not what it seems in her picture-perfect life.

In 1996, a Wyoming college student leaves a dorm party and gets a ride from the wrong classmate, vanishing into the night; police scramble to find her before sunrise.

After her husband dies of an apparent overdose, Kouri Richins writes a children's book about grief; she's charged with his murder.

A series of non-fiction investigations that explore such themes as jealousy, murder and deceit.

Jessy Kurczewski calls police to report that she found Lynn Hernan dead in her recliner; the toxicology report shows a toxic ingredient in Lynn's blood and the authorities take a closer look at Jessy.

Michelle ends her relationship with alcoholic Richard and is looking forward to getting on with her life, but Richard can't let go, and his growing obsession will lead to a violent conclusion.

Excited about a fresh start, single mother Savannah and her son move to a new neighborhood, but she has no idea that her friendly-seeming neighbor will form an obsession with her that grows increasingly dangerous on the other side of her wall.

After Katerina leaves her husband and he fights back in imaginative ways to cause her pain, including getting her locked up for a crime she didn't commit, Katerina must do the unthinkable if she wants to escape forever.

A single mother turns to exotic dancing to support her family; as she becomes successful, the temptation to make much more money leads to lies with devastating consequences; faced with an uncertain future, she stabs and kills her boyfriend.

An aspiring model, Kimberly Pandelios, accepts an offer to pose in lingerie for a mysterious photographer, then disappears; years later, a young woman contacts the police when she begins to suspect that her boyfriend may have been the killer.

In the 1970s, Anneka Di Lorenzo finds fame as a successful model in Penthouse Magazine and secures a part in the movie "Caligula," however her life eventually unravels with tragic consequences.

Elizabeth digs into convicted conman, Anthony Strangis; after unpacking his MO with Sarma, Elizabeth uncovers a string of alleged new victims; new revelations suggest Anthony Strangis is at it again and put Elizabeth hot on his trail.

Elizabeth continues her quest for answers about convicted conman, Anthony Strangis; after speaking with his alleged victims, Elizabeth wants answers; after the trail goes cold, unexpected intelligence leads Elizabeth right to Anthony's front door.

Elizabeth untangles the web of lies that wrongfully imprisoned Michelle Hadley for 88 grueling days; Michelle finally gets to take back her power and her voice as she reveals the twisted truth behind the frame job by her demented ex.

Police officer Andy Kimbrel hopes to find happiness with new wife, Stephanie Keller, but when the marriage starts to fail, Andy falls victim to manipulation and violence; a fierce argument leads to tragedy, and police suspect something more.

Teens plot the murders of their friends; one scheme involves a manipulative ex and a group bent on blood; the other, a calculating teen who brags on camera about a killing months in the making; both reveal the darkness of youth gone cold.

In the suburbs of Chicago, a handsome man with searing blue eyes turns out to be a bloodthirsty monster hiding in plain sight and attacking young women at will; it takes decades for the survivors to discover he is a serial killer.

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.

Teens plot the murders of their friends; one scheme involves a manipulative ex and a group bent on blood; the other, a calculating teen who brags on camera about a killing months in the making; both reveal the darkness of youth gone cold.

In the suburbs of Chicago, a handsome man with searing blue eyes turns out to be a bloodthirsty monster hiding in plain sight and attacking young women at will; it takes decades for the survivors to discover he is a serial killer.

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.

Teens plot the murders of their friends; one scheme involves a manipulative ex and a group bent on blood; the other, a calculating teen who brags on camera about a killing months in the making; both reveal the darkness of youth gone cold.

In Bloomington, Ill., Sgt. Jeff Pelo is a respected police officer and a model family man, then he's caught trespassing on a young woman's property after midnight, and his spotless reputation comes under fire.

In Arkansas, Lisa Bradford lives a quiet life with her husband, Dennis, and their two young children, then the police arrive on their doorstep to make a revelation so heinous it rips their marriage apart.

When 14-year old Gloria Pointer is found raped and murdered in an alleyway, it is the start of a 30-year quest for her mother who will not give up until she finds justice for her daughter.

Beautiful Northwestern Airlines flight attendant Nancy Ludwig is discovered dead in her hotel room, her body mutilated and head almost decapitated; it will take the discovery of links to another heinous killing to blow the case wide open.

When the body of high school student Debbie Gama is discovered in a creek wrapped in wire, the ensuing investigation reveals a secret world of twisted sex, drugs, sadomasochism and bondage.

In January 2014, Nathan and Krystal Maddox are gunned down just seconds after leaving a remote church in Texas; the brutal double murder leaves a close-knit community traumatized.

Michael and Rebecca Hargon vanish from their Mississippi home along with their young son; investigators discover Michael has recently come into an inheritance, and they are forced to confront the idea that his recent good fortune may be a factor.

Forensic technology years later solves the case of 20-year-old student Cathy Torrez who was found dead in the trunk of her own car.

Three college students believe it's their calling to rid Portland of its sinners, committing murders to make their point; in one of the largest manhunts in the city's history, detectives go after these cold-blooded killers before they strike again.

When Detective Molly Daul works two homicides back to back, she realizes she's dealing with a sexual predator who targets trusting young women; arrested before he can kill again, his chilling confession remains with the detective to this day.

After Kate Johnson is murdered in her dormitory room, detectives ask why this innocent young woman was targeted; detectives collect 400 DNA samples, establish a secret task force and track down Johnson's killer to get their chilling answer.

Caught up in a love triangle, young chef Heather Mallory vanishes; detectives and Heather's parents search for the truth in an investigation involving wiretaps, confidential informants and a dramatic resolution deep in the forest.

A young mother's death by strangulation engulfs a cloud of suspicion over a tiny town in Ohio.

Emmett, Idaho, a cowboy town where a person's word is everything, is shaken forever when a murderer beats a local saddle maker to death; investigators and locals band together and uncover layers of betrayal and deceit.

In Payette, Idaho, teacher Elizabeth Baune is the pillar of her community until she is stabbed to death in her own home; townspeople suspect Baune's kindness may have been behind her death.

After a long battle with cancer, David Weedman is found dead in his home with a gunshot wound; investigators soon turn their focus to David's best friends.

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.

When 31-year-old Ashley Young doesn't call her mom for days, her family and friends fear for the worst; when a 911 call triggers a basement discovery, those fears come true.

Things seem to be looking up for IT employee Jeanine Harms as she finds herself single again following a short-lived marriage; but the tides take a tragic turn when she fails to show up for work one morning.

Friendly neighbors on a peaceful street have their lives disrupted when a developer moves in and builds houses nearby; tempers flare over the access road he uses for heavy equipment, which fuels escalating threats and confrontations.

When 31-year-old Ashley Young doesn't call her mom for days, her family and friends fear for the worst; when a 911 call triggers a basement discovery, those fears come true.

Things seem to be looking up for IT employee Jeanine Harms as she finds herself single again following a short-lived marriage; but the tides take a tragic turn when she fails to show up for work one morning.

Friendly neighbors on a peaceful street have their lives disrupted when a developer moves in and builds houses nearby; tempers flare over the access road he uses for heavy equipment, which fuels escalating threats and confrontations.

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.

Twenty-six-year-old car dealer Christopher O'Brien takes a stranger for a test drive and never returns; investigators wonder whether O'Brien's criminal past has caught up with him.

Wisconsin police are shocked to find an elderly couple brutally murdered in their home, then their family members and neighbors start receiving death threats as well.

After the brutal binding, torture and murder of a woman in her home, her ex-husband calls 911, but police suspect he is the killer. Also, when a man turns up dead in a house fire, his wife tells police he was suicidal, but the truth is even more shocking.

A woman falls to her death in the Rockies, her husband calls 911. The police must find out whether her death was really an accident or was she pushed. And a three-year-old is found dead in a river. Her father calls 911, he becomes the prime suspect.

A mother brutally murdered in her home, the husband and his bizarre alter ego are in the frame after calling 911; a woman is found dead in a creek after a road accident, her husband calls 911 in a panic.

First responders arrive at a home in Ontario, where a mother leads officers to the dead bodies of her two children; an investigation yields a twisted truth: this tragedy isn't an accident but a carefully crafted killing by a vengeful psychopath.

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.

A man crashes into the back of a woman's vehicle; officers respond to the scene only to find her car abandoned; witnesses point to the other driver, and detectives are horrified to discover a sadistic psychopath who admits to murder.

A death row inmate grants a final interview weeks before his execution; after a tragic house fire in Texas, suspicion lands on a husband when the brutally murdered bodies of his family are discovered in the ashes and he doesn't blink an eye.

A death row inmate grants a final interview weeks before his execution; after a tragic house fire in Texas, suspicion lands on a husband when the brutally murdered bodies of his family are discovered in the ashes and he doesn't blink an eye.

When a priest from Florida goes missing, police focus on a troubled ex-convict whom he helped support; through multiple interrogations, a psychopathic killer reveals details of a twisted vengeance that escalates to a chilling murder.

Dancer Jodi Sanderholm spends weeks practicing for her team's big performance, then vanishes hours before the event, which doesn't make sense until a friend comes forward with strange details about the days leading up to Jodi's disappearance.

Sandi Musk begins dating Andy LeFleur while separated from her husband, then Musk tries to break things off with LeFleur only to find he is the kind of person who won't take no for answer.

Frankie Cochran falls for handsome David Gehrard, then his behavior begins to alarm Cochran, making her wonder if a secret from Gehrard's past holds more meaning than she thought.

After separating from her husband of 13 years, 36-year-old Julie Curry Boyd suddenly finds her life in danger and stops at nothing to keep her three children safe.

He was a family-man, living in a New Jersey suburb with his wife and three kids but unbeknownst to his neighbors, Richard Kuklinski held a dark secret: he was the Iceman, a cold-blooded killer.

For many years, the Iceman, Richard Kuklinski, had literally gotten away with murder, but investigators were on to him; there was very little evidence, connecting the Iceman to his crimes.

Revisiting an investigation into the case of an 8-year-old girl who was abducted, raped, and left for dead in 1968.

With a string of murders already behind him, Rodney Alcala appears on the TV show The Dating Game where he wins the prize: a date; ultimately Rodney is rejected by the girl, which many believe triggered yet another rampage of serial killings.

What started as small-town hijinks leads two teenagers to go missing on Thanksgiving; when investigators get a phone call from a man who claims he is responsible for the deaths while defending his home, they must determine truth from madness.

When Angela Prichard was terrorized by her husband, she turned to the police for help, but it did not prevent her death.

Police investigating the murder of a beloved mother and grandmother must realize that a tiny scrap of paper at the crime scene is the key to finding her killer.

When a young girl vanishes under mysterious circumstances, police must discover if she simply ran away or was actually the victim of something far more sinister.

When Angela Prichard was terrorized by her husband, she turned to the police for help, but it did not prevent her death.

Police investigating the murder of a beloved mother and grandmother must realize that a tiny scrap of paper at the crime scene is the key to finding her killer.

When a young girl vanishes under mysterious circumstances, police must discover if she simply ran away or was actually the victim of something far more sinister.

What started as small-town hijinks leads two teenagers to go missing on Thanksgiving; when investigators get a phone call from a man who claims he is responsible for the deaths while defending his home, they must determine truth from madness.

Two 18-year-old girls fall head over heels for each other, but when a 49-year-old man decides to come between them, bullets start to fly.

A man becomes fixated on his co-worker, believing they should be married, but she's already married to her jealous husband.

Lifelong Long Islander Donna Bocklet announces she's leaving for Florida; it sends shock waves through her close circle of friends and family and ultimately ends in her murder.

Looking for a fresh start, 40-year-old Priscilla Strole and her teenage son, Kyle, move to the small town of Fairfield, Calif.; little does she know, new beginnings will lead to her untimely end.

Wealthy Ann Park of Van Buren, Ark., is known for being sharp-tongued but fair, yet her son's scandalous lifestyle and others' lust for her money bring her to a horrific end.

Francis Nicky Nicolosi and his devout new wife, Ellie, are living out the perfect retirement, then one of them is found dead in an apple orchard; police discover there's more to this seemingly frail and religious couple than anyone imagined.

Tom and Juanita Richardson's second honeymoon ends with a deadly fall from a cliff overlooking Lake Superior.

In Jonesboro, Ark., Michelle and Marc's marriage ends in murder as a result of family ties that snap and break.

A minister's son, Luther, falls hard for Anita, the daughter of a pastor; then, failure delivers a crushing blow to their relationship, turning their heavenly life into hell on Earth.

Three bodies are discovered in a burned-out home in Scottsdale and a fourth family member is missing; investigators realize they have a triple homicide on their hands and embark on a decades-long manhunt.

In rural Kentucky, police receive a distressing call about the brutal killing of a family in their home; authorities learn the son is the sole survivor of the attack by a disgruntled ex-handyman, but his recollection of the murder doesn't add up.

Amina and Sarah Said long to live the lives of typical American teenagers, but when they push back against the rules of their traditionalist father, tensions simmer inside the family and come to an explosive conclusion.

Temptress Cathy Cousin moves in next door to devoted family man Tim Koile, wrapping him around her finger and convincing him to satisfy her every whim no matter how diabolical.

When Samuel Johnson Jr. suddenly vanishes, investigators find themselves face-to-face with two sisters who know something; through a series of interrogations, they reveal an elaborate murder plot meticulously engineered by a puppeteer.

Penny Knell is admitted to a special care facility, where a devious mastermind is waiting to prey on vulnerable people; when Penny's family gets ensnared in her web, the consequences will be fatal.

Air Force veteran Michael Giles disappears along with his savings of $206,000 and detectives find a that Kwaneta Harris has been draining his accounts.

Pennsylvania State Troopers are tasked with a haunting murder investigation that takes more than a decade to solve after finding charred and decomposed human remains in the Poconos.

When 31-year-old Ashley Young doesn't call her mom for days, her family and friends fear for the worst; when a 911 call triggers a basement discovery, those fears come true.

A Google X executive and consummate family man turns up dead aboard his yacht in Santa Cruz harbor; as detectives follow the breadcrumbs, they uncover a fatal encounter with a high-end escort and a pleasure-seeking, double secret life.

This true-crime series hosted by Lt. Joe Kenda, one of America's toughest detectives, features incredibly disturbing and mind-blowing cases from across the country. Lt. Kenda expertly guides us through the complex twists and turns of these bizarre crimes.

When 31-year-old Ashley Young doesn't call her mom for days, her family and friends fear for the worst; when a 911 call triggers a basement discovery, those fears come true.

A Google X executive and consummate family man turns up dead aboard his yacht in Santa Cruz harbor; as detectives follow the breadcrumbs, they uncover a fatal encounter with a high-end escort and a pleasure-seeking, double secret life.

This true-crime series hosted by Lt. Joe Kenda, one of America's toughest detectives, features incredibly disturbing and mind-blowing cases from across the country. Lt. Kenda expertly guides us through the complex twists and turns of these bizarre crimes.

Pennsylvania State Troopers are tasked with a haunting murder investigation that takes more than a decade to solve after finding charred and decomposed human remains in the Poconos.

Playboy Playmate of the Year Dorothy catapulted to fame; Paul Snider discovered the teen in Vancouver and married her.

Playboy Playmate of the Year Dorothy catapulted to fame.

Roo leads her team on a new decoy sprint in Oklahoma by launching two new underage personas; after initial contact from two sexually aggressive adults, a potential misstep could put one of the investigations in jeopardy.

Roo and the team catch a break while trying to identify The Handyman; a new decoy is launched and catches the interest of a promoter of sex parties involving underage girls.

A new ACM with an extremely concerning occupation begins a relationship with 14-year-old decoy Mackenzie; a man in another state reaches out to Abby looking to meet up with her and her friends.

Grandfather Jack Rains, 83, is murdered in his home in Murfreesboro, Tenn.; when rumors emerge of an affair between the victim and a women half his age, police start to investigate his close friends.

While searching for Tami Reay, detectives find blood in her car and arrest her husband, Brad; then, they receive a tip pointing at an entirely different suspect.

Elderly couple Roy and Angie Woodley are found brutally stabbed to death in their Fresno, Calif., home; believing the crime to be a robbery-gone-wrong, detectives soon realize the perpetrator may in fact be a family member with a grudge.

A 17-year-old boy is shot in the early hours of the morning on a suburban Kansas City street; detectives race to uncover who is responsible for the murder.

Four separate gas stations are violently robbed at gun point by a masked man in one night; detectives race to catch the robber and get justice for the terrified local community.

A 30-year-old gay man is shot dead on a busy street; the victim's family believes his mysterious new boyfriend may be responsible for the killing.

KCKPD's Narcotics Squad ensnares a low-level drug-dealing couple; to help stop the flow of meth into Kansas City, they try to flip a local drug kingpin and go all the way to the top of the drugs supply chain.

In 2009 in Tracy, Calif., a little girl vanishes after playing at a friend's house, leaving her family desperate for answers; with no leads and few clues, investigators must rely on surveillance footage to piece together the horrifying truth.

When Marcel Reardon is discovered bludgeoned to death outside an apartment building, his friends deny all knowledge of his murder; detectives are convinced at least one of them is lying.

33-year-old Michael Scott is shot dead on the streets of downtown Baltimore; detectives are in a race against time to find the gunman before he strikes again; a trail of cameras lining the city's streets and buses may lead police to the killer.

Sixty-nine-year old Ina Clare Richardson is found brutally murdered in a public park in Clarkston, Wash.; with no witnesses, investigators turn to surveillance cameras to piece together the puzzle of her fateful final night.

Can police ease the fears of a close-knit community following the murder of a beloved restaurant owner?

When 13-year-old Rachanda Pickle goes missing, suspicion falls on her father who has a dark past.

Detectives discover that Rachanda's disappearance connects to other crimes buried in Oregon's wilderness; they must close in on a suspect who has evaded justice for decades, but he is always one step ahead.

Detectives are close to nabbing their suspect, but he is already closing in on new victims; when justice comes, it reveals that previous horrors may only be the tip of the iceberg; a journalist fights to bring the truth to light.

When 13-year-old Rachanda Pickle goes missing, suspicion falls on her father who has a dark past.

Detectives discover that Rachanda's disappearance connects to other crimes buried in Oregon's wilderness; they must close in on a suspect who has evaded justice for decades, but he is always one step ahead.

Detectives are close to nabbing their suspect, but he is already closing in on new victims; when justice comes, it reveals that previous horrors may only be the tip of the iceberg; a journalist fights to bring the truth to light.

Can police ease the fears of a close-knit community following the murder of a beloved restaurant owner?

Truck driver Bob Nelson is on the verge of completing his final cross-country ride and returning home to celebrate his 25th wedding anniversary; when he fails to show, police discover his abandoned truck and a crime scene that raises questions.

Dr. Gulam Moonda and his wife, Donna, are approached by a gunman while they're on the Ohio Turnpike.

Police find a Russian family brutally murdered in a Silicon Valley home, a co-developer of the video game Tetris among them; something doesn't sit right with detectives, and it has to do with evidence - or, more importantly, the lack of it.

Detectives investigating the bizarre apparent murder-suicide of a Russian man and his family are puzzled by inconsistencies in the evidence; as they start to suspect this may be a staged scene, a surprising source thwarts their investigation.

Determined to prove that Tetris co-developer Vladimir Pokhilko did not kill himself and his family, retired crime scene investigator Sandra Brown returns to the crime scene and uncovers more jaw-dropping discoveries.

Police have a puzzle to solve when they find a gifted programmer and a jilted lover at the scene of 62-year-old Kathy Anderson's murder. However, nothing can prepare them for where this investigation will lead.

A Google X executive and consummate family man turns up dead aboard his yacht in Santa Cruz harbor; as detectives follow the breadcrumbs, they uncover a fatal encounter with a high-end escort and a pleasure-seeking, double secret life.

Things seem to be looking up for IT employee Jeanine Harms as she finds herself single again following a short-lived marriage; but the tides take a tragic turn when she fails to show up for work one morning.

When a computer wizard fails to make the grade as a professional video gamer, he becomes obsessed with achieving internet fame; what starts as an online prank spirals into a new and deadly crime called swatting that chills the nation.

An aspiring boxer leaves in the middle of the night to meet an attractive young woman who contacted him on Facebook, then he is found dead in his car the next day, and his murder reveals a family secret kept hidden for more than 30 years.

Radio disc jockey Alan Lee Lama moves more than a thousand miles to be with a woman he met online, then her best friend gets involved, ensnaring Lama in a bizarre love triangle.

When a young Army veteran returns from war, his family is relieved to have him out of harm's way finally. But danger lurks closer to home when a brief encounter on a dating app leads to a devastating tragedy.

Middle school cheer captain Tristyn Bailey is the future of Friday night lights at Creekside High; police investigating her disappearance have to navigate teenage rumors and gossip in their small Florida town to identify a monster in their midst.

The Hill family lives in a gated community near Dawson HS, where their daughter Arrijana is a popular athlete; when she is found murdered in her bedroom, detectives learn that Arrijana was hiding a secret that leads them to her killer.

In 1985, police find the body of a beloved coach in the barrens of southeast Texas, triggering a murder investigation laced with sex, jealousy and revenge; investigators close in on the killer, but an eleventh-hour twist tears the community apart.

When a high school football coach in St. Louis, Mo., is shot, the police race to identify a mystery woman they believe lured him to his death.