A man is found stabbed to death after a night in a strip club. A drop of blood on a bedspread becomes critical evidence five yeas later.

After police identify a murder victim thanks to her butterfly necklace, they discover several co-workers had vendettas against the victim.

The brutal murder of a construction site foreman looks like the work of a disgruntled employee, but forensic science points to an unlikely suspect.

A shooting victim mutters the name of her apparent assailant before dying, but fingerprint comparisons, handwriting analysis, ballistics and DNA testing show someone else close to home is the true killer.

A woman tells investigators that a man broke into her home wearing only underwear and gloves, killed her boyfriend, and raped and terrorized her.

Inside the mind of America's most notorious serial killer, Jeffrey Dahmer; new revelations and never-before-seen interviews shed light on the grizzly and twisted case, told firsthand from those closest to Dahmer, including family.

A similar abduction in New Mexico helps crack the case of a 19-year-old missing college student in Oregon.

A similar abduction in New Mexico helps crack the case of a 19-year-old missing college student in Oregon.

Hollywood actress Aasha Davis' sister, Lesley, goes missing after a fight with her husband never to be heard from again.

A woman is found dead on her bedroom floor, the only clue is a bloodstained sheet; breakthrough forensics enable police to identify the killer.

A young man was killed in a mysterious car crash, but the evidence at the scene led investigators to believe it was not an accident; forensic science revealed what really happened, and the truth devastated three families.

When the body of a beloved, elderly woman is found brutally murdered and stuffed inside a decorative wishing well in the backyard of her property, a dogged detective goes on a years-long hunt to catch her elusive killer.

A paroled killer linked to the disappearance of young women forces police into a desperate manhunt; this shocking case unfolds against a backdrop of unfortunate legal and parole decisions that set Kenneth McDuff loose to become a serial killer.

After a police chase ends in tragedy, Special Prosecutor Kelly Siegler returns to her rural roots to seek justice for a murdered game warden and his devastated family.

Kelly and Johnny Bonds return to their home state of Texas to look into the disappearance of a young mother in 2000, whose family has never given up on her; while some suspect murder, others claim to have seen her on the run with a mystery man.

Kelly and Johnny Bonds answer the call of a grieving mother, whose 19-year-old son drowned while camping with friends; despite the medical examiner ruling it an accident, some suspect foul play.

Kelly and Abbey Abbondandolo investigate the cold-blooded murder of a fun-loving Texas country boy shot in the back of his head; it could the result of a love triangle gone tragically wrong.

When Karen Pannell is found stabbed to death, a message scrawled in blood seems like a beacon that could lead detectives to her killer; it takes a dogged forensic specialist with a keen eye to unravel the mystery.

Larry McNabney has a thriving career and a wife he adores, but then vanishes; at the center of the twisted mystery, three lives tangle together in a love triangle, including one who hides a secret identity.

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed; the case goes cold but a relentless detective is determined to catch Jack's killer.

Steven B. Williams, a DJ with a golden voice, vanishes in a mystery that stretches from California to Montana; the clue to it all is wrapped in a napkin, tucked in a cabinet and hidden in a library.

Judy Carlson lived in a painful limbo; her son disappeared without a trace; years went by and she may never have known his fate if not for a rookie detective's dogged work, but to solve this cold case, the investigator also need the help of a killer.

The neighbors enjoy mixing business with pleasure then a murder makes them face the reality that a killer is in their midst.

Michelle Young was married to her college sweetheart and pregnant with their second child when she was murdered; in the search for her killer, detectives uncovered a marriage riddled with secrets but cracking this complicated case took years.

When a pediatric dentist is found dead, police uncover a complex plot and their suspect leads investigators on an international manhunt; the lead detective speaks out for the first time.

A case Keith Morrison can't forget in which a teen's murder shakes a Nevada community and two unlikely people confess.

Andrea Canning recalls a case in which investigators set up an elaborate sting operation to stop a murder-for-hire plot.

Investigators believe a young woman left of her own accord, but her mother is convinced that someone close to her is hiding a big secret; a two-year search for the truth brings investigators to the backyard of a historic location.

While attempting to identify the remains of a victim found buried in the backyard of a plush California home, investigators learn another murder was committed at the exact same residence 30 years earlier.

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; a secret she was keeping may lead to clues about what happened to her.

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; a secret she was keeping may lead to clues about what happened to her.

Out with his fiance on Halloween, a man leaves a bar with the rowdy crowd behind him and is never seen again.

A woman is found dead, police use blood evidence and computer forensics to convince a jury that the murderer is guilty.

When an elderly woman dies in an apparent robbery-homicide, evidence suggests the suspect broke out of the house rather than breaking in.

When two female college students go missing, their whereabouts remain unknown for months, until a parole officer recalls startling information that would lead investigators to the backyard of a remote property.

A young mother's passionate affair with an old boyfriend ignites suspicion when someone close to both of them is murdered.

When a young military wife goes missing from a Marine base, investigators suspect a forbidden love affair and a secret pregnancy may have driven someone to murder.

The investigation of a young gamer's murder begins with his mother's heartbreaking 911 call but when detectives find a clue inside evidence left at the crime scene, the case turns into a multi-state search for a heartbroken suspect.

After a psychic dream leads detectives in Florida to the body of a missing nurse, the ensuing investigation uncovers a series of brutal betrayals exposing a vengeful killer fueled by jealousy.

When a firebomb attack destroys the home of two sisters, police turn to the neighborhood for answers, but the high-profile case takes an odd turn once detectives realize they have a homicide on their hands and the culprit is much closer to home.

Investigators work to uncover the truth behind a local church scandal in order to pin down a most unlikely suspect after a young Texas teacher is found axed to death on Friday the 13th.

When a beloved woman in North Carolina is found stabbed to death in her own home, investigators uncover an unnerving history of harassment carried out by a killer blinded by jealousy.

When a police officer's wife is shot to death in her bed, her parents' certainty that investigators have it wrong and their determination to untangle the mystery, makes the case unforgettable for Josh Mankiewicz.

A man charged with murder denies committing it; the courtroom strategy provides a twist.

Keith Morrison reflects on the case of a Chicago woman from a big family who went missing.

Andrea Canning recalls the case of a popular kindergarten teacher who goes missing after shedding hundreds of pounds, and investigators find a link between her weight loss and her disappearance.

When a pharmacist is found shot dead, investigators go on a 15-year hunt for his killer; for Andrea Canning, this story has unique locations, fascinating potential suspects and riveting plot twists, but says the victim makes this mystery special.

Josh Mankiewicz recalls the story of a detective who makes it her mission to find dozens of women who vanished on the streets of Albuquerque, N.M.

A wife calls 911 to report her husband has been shot on a country road in Texas; what she tells investigators next makes this case memorable for Josh Mankiewicz.

After a night out in New York City with his new girlfriend, 56-year-old businessman Charles Butler simply vanishes, and his panicked children only receive confounding texts in response to their inquiries.

Investigators discover that moments after teenage social media star Alexis Murphy posts her final tweet before vanishing, she is captured on surveillance footage at a local gas station.

When a woman is abducted during her evening shift at a gift shop, her family keeps the case in the public eye for decades, until investigators finally solve the mystery.

When a woman is abducted during her evening shift at a gift shop, her family keeps the case in the public eye for decades, until investigators finally solve the mystery.

Investigators look for answers when a popular school superintendent is found dead in his western New York home.

Wealthy man is shot dead while his wife is forced to open their hidden safe, but they couldn't be identified because they were wearing ski masks.

The bomb was constructed to cause as much damage as possible and it did, killing the victim with deadly force and flame; a painstaking search yielded tiny clues, which identified the killer as surely as if he'd signed them.

When a young Texas mother goes missing, a tangle of dark secrets and a trail of deceit threatens to derail the investigation.

Eight family members are executed in one night as detectives must unearth the hidden motive to track down the killers; while the community mourns, investigators analyze bloody footprints to determine which path leads to the truth.

As investigators zero in on the Wagners, the family starts to feel the heat and begin undercutting each other; a message from Hanna Rhoden reveals a shocking possible motive for the murders.

At George Wagner's trial, stunning testimony exposes secrets throughout the close-knit community; a motive that caused a family of eight to be murdered in four locations in one night is revealed.

Sarah Turney became a viral sensation when she posted suspicions on social media that her dad killed her sister, Alissa; Sarah re-examines her and Alissa's childhood, breaking through years of manipulation to reconstruct the truth.

An affluent family at war with each other for over a decade, find themselves at the center of a murder investigation when a beloved uncle is found dead. Police unravel a conspiracy involving a wayward son and a counterfeit secret agent.

A young mother's disappearance sparks a bitter division among those she leaves behind; as the infighting intensifies, detectives scramble to find out what happened to her, only to discover that a conspiracy to kill is fresh underway.

A gruesome Thanksgiving triple murder case lays bare a family's violent past, including a son and daughter each with a score to settle; as the years pass and the case goes unsolved, three families desperately fight for the truth and justice.

The body of a teen is found at a local party spot and theories surrounding her death spread, but the case goes cold for 30 years, until the investigation heats back up.

Authorities are puzzled when a beloved Georgia grandmother is shot execution style, but as the investigation unfolds, a once close-knit family turns against itself.

After leads dry up in a missing person case, detectives in Ennis,Texas, discover a severed body part at a nearby lake; after confirming the DNA match, they begin to uncover the rippling relationship that led to the death of a beloved father.

After the deceased body of a St. Petersburg, Fla., woman is found in an abandoned trailer, investigators search for answers and uncover the dark truth of what happens when someone is pushed too far.

For the first time, Kelly and Steve investigate two missing persons cases at once, a loving mother and her high school friend who vanished just months apart.

Kelly and Steve investigate the biggest unsolved cold case in East Texas -- the 1992 death of a popular teen whose charred remains were found in her car.

After a homeowner randomly uncovers human remains while doing yard work in his California backyard, a homicide detective enlists the help of a local veterinarian to solve the murder.

A man asks investigators to help track down his missing father, ultimately sending them on a lengthy game of cat-and-mouse that results in horrific discoveries in two backyards.

After a former beauty queen and mother of eight is found unconscious in her bathtub following a facelift, her death appears to be an accident; when her doctor husband is caught in a series of deceptions, it raises alarms with investigators.

A husband comes home to find his wife dead next to their outdoor fish pond; her cause of death appears to be from a trip and fall, but when investigators follow a twisted trail of familial deceit and greed, new truths bring her death into question.

When a young mother is found dead at work from an apparent suicide, her church community is shocked by the loss; however, revelations of torrid infidelity and rampant drug use lead investigators on a decade-long search for the truth behind her death.

Lead investigators and family members speak about the murder of Colorado mother Kelsey Berreth, whose disappearance made national headlines after she was last seen grocery shopping on Thanksgiving in 2018.

Lead investigators and family members speak about the murder of Colorado mother Kelsey Berreth, whose disappearance made national headlines after she was last seen grocery shopping on Thanksgiving in 2018.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

A father in Hawaii tackles setback after setback in his fight for justice for his murdered daughter.

The friends of a father from Georgia accused of murdering his ex-wife come together to prove he is innocent, while prosecutors count on his young children to testify against him.

Robbery seems to be a plausible motive when a North Carolina man is found shot to death in a roadside ditch, but the case remains cold for years until a mysterious letter reveals a more sinister motive than anyone could have imagined.

Authorities are left stunned when stories of mysticism and conspiracy come to the front while they investigate the disturbing murders of an elderly Vietnamese couple in Texas.

A weekend getaway at a Reno resort becomes the center of a mystery when a respected college professor disappears; police learn that the answers may lie buried beneath desert sands hundreds of miles away.

A former judge retires to Florida and becomes the center of a mystery when he vanishes; police must unravel the possible connection between his disappearance and a ghastly discovery found buried at an abandoned golf course.

The discovery of a body buried in a Delaware backyard launches police into an investigation that leads them on a twisted path through bizarre family ties, an unexpected love triangle and an unthinkable murder plot.

A Colorado woman vanishes shortly after moving in with a group of friends; an investigation reveals there was a lot more going on inside the home than anyone realized.

A missing young father in Utah returns home and confesses to an affair, but when he vanishes again a short time later, it quickly seems something more sinister is at play.

When a high school student mysteriously vanishes, police must sort through the whispers, lies and deeply personal secrets of a group of teenagers in a small Michigan town to unearth the deadly truth.

A night out on Hollywood's notorious Sunset Strip leads to a desperate search when a teenage girl doesn't make it home; the search for answers weaves though the strange side of Los Angeles before the tragic truth is uncovered in the Hollywood Hills.

A California mom of three vanishes, and her car is found by the side of a desolate road with a suspicious flat tire; the case goes cold for years until a new detective takes on the case and is determined to get answers.

A cowboy more at ease with horses than people vanishes into the desert after running into a group of California ranchers who believe he's done them wrong.

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

When a 21-year-old goes missing during the height of the pandemic, LAPD detectives unravel a mystery hidden in deleted security video to solve a murder.

After a husband and wife realize their dogs have been dragging human bones into their backyard, cops learn that a serial killer is using the nearby woods to indulge in his dark fantasies.

Wilton Manors, Fla., investigators search for motives after a beloved father is found strangled and battered in his driveway, until an unsuspected confession reveals a complex web of deceit.

After the burned body of a local man is found in rural Missouri, the homicide goes unsolved for nearly two decades until a twisted murder plot is brought to light.

When a 21-year-old goes missing during the height of the pandemic, LAPD detectives unravel a mystery hidden in deleted security video to solve a murder.

A beloved Missouri couple is thought to be swept away in a record-breaking deadly storm, but when a closer look at the family farm points to foul play, law enforcement searches for clues long since washed away.

When a Michigan mother disappears on an afternoon walk, investigators pin all hope on their sole eyewitness: a 10-year-old boy who may have witnessed the unthinkable.

When two women call 911 after hearing someone break into their apartment, their call for help holds the key to solving the mysterious murder of a young graduate student named Katie Sepich.

When two women call 911 after hearing someone break into their apartment, their call for help holds the key to solving the mysterious murder of a young graduate student named Katie Sepich.

A teenager is convicted of encouraging her boyfriend to kill himself; exclusive interviews with those on both sides of the case.

Years after the kidnapping of Amanda Lindhout, secret agents put a daring undercover sting into action.

Former DEA agent Andrew Hogan details his search for Mexican drug lord Joaquín.

When a successful Arizona businesswoman disappears on a holiday shopping trip, investigators hunt for a kidnapper; when the killer takes his secrets to the grave, however, the only chance of finding her is a psychic's mysterious vision.

A young couple sets out from a holiday visit but never makes it home as law enforcement search dangerous terrain fraught with derelict silver mines.

Investigators in Gresham, Ore., are left with a gruesome crime scene, an assailant on the loose and a missing child after the victim of a stabbing is able to call 911 in a last attempt to save her own life.

When two Ghanian immigrants are discovered murdered in their upscale Maryland home, police are confronted with bizarre evidence that motivates them to take a closer look at the mystifying rituals of voodoo.

The family of a former soldier questions whether or not his death was a tragic coincidence when they learn of a suspicious detail from his wife's past.

When a missing man's body is found, his wife finds herself under a microscope; police want to solve the case before it goes cold.

When men who helped a.

Devoted to raising her daughter's child, a loving grandmother is found executed in her own home; police unfold an ongoing custody battle which leads to suspicions towards those nearest to her grandchild.

A young man ends up dead while out hunting; investigating whether this is a case of an accidental shooting, or if there is a more sinister explanation.

An Arizona socialite makes a gruesome discovery, which leads local law enforcement to ask questions about her troubled marriage; she claims she found a man dead, but police have reason to believe otherwise.

A young man is brutally murdered, and a woman is found covered in blood just hours later; she is adamant that she is innocent, and later a twist in the case shocks everyone involved.

An argument between a couple ends in murder, but police are unsure if it was an act of self-defense or something more sinister.

The discovery of an unidentified woman's decomposed body in a roadside ditch leads to a mystery that unravels a deadly love triangle.

She said her husband ran away with his much younger mistress, but after years of suspicion, police find him much closer to home.

When a camper goes missing, the search uncovers problems in his marriage and a deadly plot.

A beautiful college student and a successful attorney looked the perfect couple, but a shooting reveals the shocking secrets in their relationship; after reviewing the interrogation tapes a jury must decide whether to believe claims of self-defense.

A deadly home invasion leads to questions about a popular bartender, illegal drugs and the murder of her husband.

A shooting has investigators asking if it was the work of a rebellious son, an abused wife or someone far more sinister.

The discovery of a dismembered man rocks a close-knit town as shocking accusations spread about the alleged culprit and his doting mother.

A college student is found murdered in a residential neighborhood; as police search for the truth, they are stunned to learn that one of their own might be involved.

A college student is found murdered in a residential neighborhood; as police search for the truth, they are stunned to learn that one of their own might be involved.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

After the naked body of an Ohio State senior is found, investigators bring in a suspect for questioning; they play a dangerous game of give and take hoping to get the truth and bring justice to the victim and her family.

When a woman is found dead in her home, police aren't sure if it's an accident or a murder until they get an unexpected call, from an unexpected person.

After a hard working Virginia couple is brutally murdered on the eve of their anniversary, the ensuing investigation goes cold until detectives find the most unlikely of suspects.

After 27 years in prison, Carolyn Warmus speaks for the first time since her release, detailing her affair with co-worker Paul Solomon, whose wife, Betty Jeanne, was found murdered.

Carolyn Warmus is granted permission to conduct new DNA tests that she believes will prove her innocence in the murder of her lover's wife 27 years after she was imprisoned for the woman's death.

A shocking murder raises questions about a young woman, her relationship with her boss and the possibility of multiple personalities.

The murder of a devoted family man leads investigators through a twisted tale of infidelity, betrayal and one woman's deadly plan.

A business man's mysterious death sends police on a years-long investigation that leads to suspicions of those nearest and dearest to him.

When a beloved Wisconsin father disappears, his wife blames drugs, but close friends suspect a violent confrontation that ended a marriage filled with secrets.

A churchgoing southern woman loses her husband to tragedy, but a cloud of suspicion haunts her new marriage and leads investigators to a new conclusion.

A violent home invasion leads to suspicion about the victim's stepdaughter and a mystery man, but a startling confession reveals a more intimate betrayal.

A popular cab-driver is shot dead on the job, but the search for his killer reveals his wife's secret prison visits, a torrid affair and a possible conspiracy.

The murder of a beloved widower leaves police wondering what secrets his marriage, to his much younger wife, might be hiding.

An Air Force sergeant is gunned down in his garage revealing an elaborate conspiracy with an unlikely mastermind.

Police must unravel a mystery involving an Arizona couple, cross-country romance and a deadly plan.

Halloween becomes a real-life horror story when police discover a beloved mother of four murdered; the panic intensifies as the investigation turns into a case populated by demons, masks and a potential psychopath on the loose.

On Halloween night a knife-wielding intruder attacks and kills two roommates and leaves another lucky to be alive; although the story is reminiscent to the plot of a horror film, the terror is all too real.

Trick-or-treaters in a small Indiana town have no idea that the sweet grandmother passing out candy is also hiding a deadly secret in her garage.

Kelly and Steve Spingola investigate the brutal slaying of beloved mother Eloise Payne, who was stabbed 38 times in her Michigan home; a mysterious car spotted in the area may hold the key to identifying her killer.

Kelly Siegler and Aaron Sam look into the disappearance of a father who tragically vanished just before he could move back home to his family; they ask if a financial windfall could have had something to do with the man's disappearance.

Rapper Meek Mill interview; exploring controversies surrounding the criminal justice system, including the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse and more.

When a soldier who just returned from Afghanistan is gunned down on the side of the road in Kentucky; detectives quickly uncover a secret that could solve the case.

A young woman's murder remains unsolved until someone comes forward to reveal her own harrowing story.

A year after a popular high school senior goes missing, a witness comes forward claiming to know who is responsible for her disappearance and detectives must unravel a web of lies in order to learn the truth.

A woman discovers the body of her nephew and investigators must unravel the events that led to his demise, but with three viable suspects, it takes about a year to crack the case using the smallest piece of DNA evidence from the crime scene.

A young mother in Utah vanishes and the only suspect, her husband, acts suspiciously; Stephanie Bauer examines never-before-seen home video recordings that shed light on the dramatic events surrounding the disappearance of Susan Cox Powell.

A defensive husband flees justice after the disappearance of his wife drags both of their families down deeper into destruction and tragedy.

Phoenix Coldon vanishes; investigative reporter, Shawndrea Thomas, and retired deputy Police Chief Joe Delia attempt to unravel the mysterious unsolved case in the hope of finding justice for Phoenix.

Joe and Shawndrea follow up on a handful of Phoenix sightings since her disappearance and begin to question whether she'd been lured into a new life more dangerous than she could have anticipated; a surprising lead goes to an unexpected locale.

A spunky grandmother and former bail bondswoman is a no-show at work, leaving friends and family desperate for answers. As investigators focus on felons from her former career, they soon discover she may not be the only one missing.

When a California mother wakes to find the door wide open and her daughter missing, law enforcement travel the country to find her until they discover a dark plot that began at the teen's doorstep.

When a widower disappears from his Southern California home, investigators find themselves caught up in a federal investigation involving the infamous hunt for skyjacker D.B. Cooper.

When a respected Toronto bookkeeper is found murdered inside his home, the search for his killer focuses on two unexpected suspects and unearths shocking allegations of sex, scandal and a deadly betrayal.

When a woman's body is discovered in a town park, the investigation into what happened exposes a sordid tale of lust, torture and two cases of cold-blooded murder.

After a Delaware man's mother is found dead, he tells a story that's so improbable police think it can't possibly be true.

A family vacation turns into a terrifying search for a missing wife and baby, then becomes a manhunt for a killer who committed a horrific crime.

A DNA dragnet catches a killer eight years after the kidnapping, rape and murder of a college coed in Oklahoma.

A nosy neighbor with a disturbing obsession becomes a suspect in a woman's murder at an upscale apartment complex; police discover an incredible link to an unrelated murder thousands of miles away.

A college student turns up dead and her boyfriend becomes a prime suspect when blood splatters are discovered on his wall.

Texas police hunt frantically for a brutal rapist. No one knows where he'll strike next, but given the increasingly violent nature of his crimes, he must be found soon.

When detectives find a mismatched button in relation to a woman's death, they know they can follow the clue back to the killer.

A woman heads home after church, but never makes it there alive, triggering a homicide investigation.

Volunteers and police spend weeks searching for a missing girl. A psychic later leads them to a field where the body was found.

Forensic investigators try to stop a killer who is apparently responsible for two slayings in a community in South Carolina.

When DNA proves that a man who practically admits to a brutal attack is innocent, police wonder why he was willing to take the blame.

When a businessman is murdered, motives and suspects are plentiful. Was it simply a disgruntled employee or client? Or do some racy photos hold the clue to the crime?

A family break turns into a nightmare when the wife is found face-down in a lake. With no idea whether it was murder, an accident or suicide, police turn to a new forensic technique.

When friends see a woman in the back of a car flailing her arms and screaming, they assume she is having fun, but when they later come upon a jacket and a pool of blood, they realize they witnessed an abduction in progress.

The survivor of a horrible attack is convinced police have the wrong suspect.

The survivor of a horrible attack is convinced police have the wrong suspect.

The parents of a missing South Carolina woman speak out about her disappearance.

Kathy Lujan, a married mother of two young boys, is believed to have run away with one of her lover; Detective Rosie Rodriguez chases a trail of evidence and suspects that reveal the truth about Kathy's whereabouts.

A community bands together to search for a missing woman; police are unable to solve the case until they speak to her husband's close friend and learn some startling information.

Diving inside the mind of New York's most prolific serial killer, Joel Rifkin; through never-before-heard interviews from Attica Correctional Facility, Joel Rifkin reveals exclusive insights into the mind of a monster.

Former FBI Special Agent John Douglas and psychiatrist Louis Schlesinger take a deep dive into serial killer Edmund Kemper's troubled history, intellect and evolution; the groundbreaking FBI work that led to breakthroughs in catching serial killers.

Multiple unidentified bodies are found inside barrels in a New Hampshire forest; decades later, a murder 3,000 miles away reveals their connection to a serial predator who targets women and children, and changes his identity after every violent kill.

When a star athlete at an Ivy League university goes on trial for murder, sparks fly in the courtroom; the trial ends with a stunning decision that Dennis Murphy will never forget, but the surprises in the case are just beginning.

Dennis Murphy looks back at the story of a determined young woman whose decadeslong search for answers in her mother's mysterious death leads to a dramatic courtroom decision.

Investigators track down a suspect in the disappearance of a celebrity dog trainer; Keith Morrison reflects on the fractured love story at the center of the mystery.

Andrea Canning looks back on the case of a fitness tracker who helps detectives solve the mystery of a young woman's death in Wisconsin; Andrea confronts the killer in a tense interview.

A devoted mother is found shot to death in her minivan; the case stays cold until old memories resurface and new revelations come to light, dividing her Florida family.

Keith Morrison revisits a story that has haunted him for years; when detectives find a missing woman's car abandoned on a bridge, their investigation uncovers a tangled plot involving money, friendship and a deadly betrayal.

A mother of two vanishes in Monrovia, Calif.; as detectives investigate, the woman's loved ones reveal that she feared she was being stalked; for Josh Mankiewicz, cases like these are all too familiar, and that's a tragedy he just can't shake.

A lavish wedding at a mountain lodge ends in tragedy when two people are shot in their cabin; a mysterious stranger who seems to have vanished into thin air could hold the key to the shooting.

In Kansas, two women go out for a night of revelry and encounter a host of old and would-be boyfriends, but by morning one of the women is found dead in her home and an investigation into her last hours begins.

After Todd Chance is murdered, police follow a trail of video evidence as they work to track down the killer.

After Todd Chance is murdered, police follow a trail of video evidence as they work to track down the killer.

When two tragic deaths occur within one week of each other in a wealthy city in California, families begin to wonder what happened inside a beachfront mansion.

Devoted mother of two, Heather Strong, disappears, leaving her two children with her estranged husband, Josh; as Josh becomes an obvious suspect, an unlikely and sinister offender emerges.

A homicide of a beloved young coal miner sends shockwaves through a conservative mining community; as multiple suspects arise, detectives try to determine if the killing was a robbery gone wrong, a crime of passion, or possibly a hate crime.

When a popular college student is killed, investigators discover a dark side to the school's fraternity culture and uncover someone's obsession with revenge.

When secrets from his past threaten to derail his career, a New Orleans sportscaster stops at nothing to hold on to the spotlight.

After a massive Halloween bash ends with a young woman's mysterious disappearance, a tiny farming town fears that evil stalks its fields.

Helen's boyfriend goes missing just as authorities find a dismembered torso, but the case may not be closed; 20 years later, Helen's new story could be a game changer.

The death of a police officer leads to a search for her killer; her shooting may be payback for an old arrest, or may be closer to home.

The life and crimes of master manipulator, Drew Peterson.

Nathan and Denise Leuthold build their family on faith, but suddenly one of them dies and the other is under suspicion; it's a story that stays with Andrea Canning, both because of what happened and when it happened: Valentine's Day.

When a novelist's wife is found dead at the bottom of the stairs, investigators wonder if it is an accident or murder; Dennis Murphy interviews main suspect Michael Peterson and returns to the case with insight only he can share.

For more than 30 years, Ohio investigators have searched for answers in the murder of 10-year-old Amy Mihaljevic; the details of the case still haunt Josh Mankiewicz and investigators, who ask for helping solving the crime.

A pregnant woman vanishes before her own baby shower and her worried family raises the alarm as detectives unravel a chilling mystery; for Josh Mankiewicz, it was a heartbreaking case that stayed with him long after the cameras stopped rolling.

Eduardo Valseca is taken hostage in an orchestrated abduction; Keith Morrison reflects on the family he spent years following; what happened to them might have destroyed many, but not the Valecas.

A double homicide in upstate New York leads detectives on a cross-country investigation; Dennis Murphy reflects on a story full of twists and turns, including the surprising suspect at the center.

When a promising forensics student is found mutilated on a lonely stretch of Utah highway, her sheriff's department colleagues will stop at nothing to deliver justice.

Detectives attempt to trace a young woman's last steps as she leaves a casino and disappears into the night; an almost forgotten childhood memory helps find her buried in the backyard.

A 40-year-old Minnesota woman is shot to death in her bed while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead.

A 40-year-old Minnesota woman is shot to death in her bed while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead.

A soon-to-be bride is caught in the middle of a twisted murder plot that has detectives questioning if she played a role in it.