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Investigators deal with puzzling clues and odd witness accounts when solving a 1987 murder. Will lost evidence be the key to identifying the killer.

A college student is found stabbed to death in her bed. Detectives immediately find the murder weapon and an eyewitness, but the case stalls.

A young mother of four disappears with only her car left behind. When a massive search is undertaken, one of the people looking for her turns into a suspect.

In June 2003, a five-year-old girl vanishes as she walks to a friend's house. As police investigate, they realise the community is hiding some disturbing secrets.

It is love at first sight for Michelle and Dennis. But soon, the dark past of Michelle's new husband rears its ugly head and ends in a double homicide.

When a dancer is shot dead in her home, detectives try to figure out who had a motive to kill her. A cigarette found at the scene may provide answers.

When a mother disappears from her home, suspicion moves from one admirer to another. Will a surprise confession solve the mystery.

When two people are murdered, a teenage boy is arrested and pleads guilty. For 24 years one woman believes he is innocent, but once released his true nature surfaces.

A woman enters into an affair with her daughter's grandfather, causing a major rift in the family and eventually leading to a bloody Texas showdown.

Julie Bowling is a respected cancer therapist and funeral home worker. When she is murdered the focus turns to her husband's secret life and shaky finances.

The disappearance of Dena Raley-McCluskey was lost in the media frenzy over higher profile killings, until a bored cop stumbled upon her years-old case.

Jam Master Jay, best known as Run-DMC's DJ, was killed in his recording studio. An exclusive interview with an eyewitness sheds light on this decades-old cold case.

A hopeful soap opera star shines in the background - but her rise crashes instantly because someone doesn't want to see her succeed.

A man tries to fool a TV show into awarding him money. Three years later, he kills his partner then calmly lays a trail of false leads. Experts uncover the truth.

On Valentine's Day 2013, Oscar Pistorius shot dead his girlfriend, Reeva Steenkamp. He said it was an accident, but does audio and TV footage suggest he was faking.

When 31-year-old Ashley Young doesn't call her mum for days, her family and friends fear the worst. A 911 call triggers a gruesome basement discovery.

A couple's weekend getaway takes a tragic turn when they are found murdered on a California beach. Satanic imagery nearby leads local deputies on a manhunt.

In 1992, a college student disappears after her car breaks down on the highway. Police are stumped when her body is found 500 miles from where she vanished.

Julie Bowling is a respected cancer therapist and funeral home worker. When she is murdered the focus turns to her husband's secret life and shaky finances.

The disappearance of Dena Raley-McCluskey was lost in the media frenzy over higher profile killings, until a bored cop stumbled upon her years-old case.

Jam Master Jay, best known as Run-DMC's DJ, was killed in his recording studio. An exclusive interview with an eyewitness sheds light on this decades-old cold case.

A hopeful soap opera star shines in the background - but her rise crashes instantly because someone doesn't want to see her succeed.

The disappearance of Dena Raley-McCluskey was lost in the media frenzy over higher profile killings, until a bored cop stumbled upon her years-old case.

When a dancer is shot dead in her home, detectives try to figure out who had a motive to kill her. A cigarette found at the scene may provide answers.

When a mother disappears from her home, suspicion moves from one admirer to another. Will a surprise confession solve the mystery.

When two people are murdered, a teenage boy is arrested and pleads guilty. For 24 years one woman believes he is innocent, but once released his true nature surfaces.

A woman enters into an affair with her daughter's grandfather, causing a major rift in the family and eventually leading to a bloody Texas showdown.

When LeRyan Nicholson's sisters investigate his disappearance, they uncover a series of secrets that lead them to the heart-breaking truth.

When woman is stabbed to death in broad daylight, police think she knew her killer. And, new evidence after a deadly house fire points to arson.

Is Rodney Reed Innocent? A Texas woman is brutally raped and murdered, and the trial sparks a racially charged debate over whether an innocent man has been condemned to death.

A high-flying attorney and one of his clients embark on an illicit affair. When their secret affair is revealed, the laws of attraction prove fatal.

Relatives of serial killer Jo Dennehy reveal how her shocking crimes impacted the family. Were there any signs of her murderous intentions.

Relatives of serial killer Robert Maudsley reveal how his shocking crimes impacted the family. Were there any signs of his murderous intentions.

LAPD investigators hunt a criminal who steals expensive yachts, but find a mild-mannered man among their own ranks who's involved in a lot more than just boat theft.

Deception. When Jean Claude Dominique is victim to a hit-and-run, his wife rushes to his side - only to meet his other wife. This glimpse into his double life leads to danger.

When the Clutter family are brutally murdered, it triggers a nationwide search for the killers. But detectives face the fact that they may have died for no reason.

A shooter kills a young mum in her home, and they leave her body locked in a sexual pose. Investigators suspect an attempt to shame her even in death.

Desiree's life upends when her dad marries a cold and controlling woman who secretly plans to commit a cold-blooded murder.

When Sara learns of her mother's murder, she slowly begins to realise who her father truly is, unearthing her family's dirty secrets along the way.

California's Central Valley is one of 'America's breadbaskets', but one family is harvesting murder. Financial worries and an unwanted pregnancy have dire consequences.

Relatives of serial killer Jo Dennehy reveal how her shocking crimes impacted the family. Were there any signs of her murderous intentions.

Relatives of serial killer Robert Maudsley reveal how his shocking crimes impacted the family. Were there any signs of his murderous intentions.

LAPD investigators hunt a criminal who steals expensive yachts, but find a mild-mannered man among their own ranks who's involved in a lot more than just boat theft.

Deception. When Jean Claude Dominique is victim to a hit-and-run, his wife rushes to his side - only to meet his other wife. This glimpse into his double life leads to danger.

Relatives of serial killer Robert Maudsley reveal how his shocking crimes impacted the family. Were there any signs of his murderous intentions.

When LeRyan Nicholson's sisters investigate his disappearance, they uncover a series of secrets that lead them to the heart-breaking truth.

When woman is stabbed to death in broad daylight, police think she knew her killer. And, new evidence after a deadly house fire points to arson.

Is Rodney Reed Innocent? A Texas woman is brutally raped and murdered, and the trial sparks a racially charged debate over whether an innocent man has been condemned to death.

A high-flying attorney and one of his clients embark on an illicit affair. When their secret affair is revealed, the laws of attraction prove fatal.

A young woman is murdered on a trip to her father's homeland, and a young mother and her baby are shot as they are driving. Will anyone be brought to justice.

A 22-year-old National Guard officer with a bright future drowns in water only a few inches deep. Later, a 13-year-old cheerleader disappears.

The Freeman family trailer is burned to the ground and the parents are found dead with gunshot wounds, but their teenage daughter and her friend are missing.

When teens Zainab and Ammar fall in love, their relationship is forbidden by her father - who will stop at nothing to ensure that his rules of honour are obeyed.

When 18-year-old Julie Heath goes missing in rural Arkansas, the small town begins a desperate search for her. But no one expects the horror that ensues.

In the desert town of Socorro, New Mexico, Crystal Houston is found murdered just 14 months after her sister, Stephanie, is killed in a suspicious accident.

When a mother of two suddenly vanishes, her husband claims she ran off with another lover. But her family suspects something much worse. 14 years later, the truth emerges.

After 30-year old Katrina Smith vanishes, investigators find her car and video footage of a hooded stranger the night she disappeared. Soon, dark secrets emerge.

A young mother's ex admits he's responsible for her death but then retracts his confession. Plus, the heartbreaking death of a 10-month-old baby.

Aspiring rapper Michael Munson is found shot in his car with cash and drugs. Detectives suspect a link with another shooting, but can they prove it.

When a good-natured casino worker is found dead in the woods in the small town of Laurel, Montana, every customer becomes a suspect.

A cowboy town is shaken forever when a murderer beats a local saddle maker to death. Investigators and locals unite to uncover layers of betrayal and deceit.

When Ray and Marie Thornton go for a drive, a tailgating van nearly chases them off the road. They spot the driver changing license plates and dumping a bloody sheet.

When a mother of two suddenly vanishes, her husband claims she ran off with another lover. But her family suspects something much worse. 14 years later, the truth emerges.

After 30-year old Katrina Smith vanishes, investigators find her car and video footage of a hooded stranger the night she disappeared. Soon, dark secrets emerge.

When 18-year-old Julie Heath goes missing in rural Arkansas, the small town begins a desperate search for her. But no one expects the horror that ensues.

In the desert town of Socorro, New Mexico, Crystal Houston is found murdered just 14 months after her sister, Stephanie, is killed in a suspicious accident.

In the desert town of Socorro, New Mexico, Crystal Houston is found murdered just 14 months after her sister, Stephanie, is killed in a suspicious accident.

A young woman is murdered on a trip to her father's homeland, and a young mother and her baby are shot as they are driving. Will anyone be brought to justice.

A 22-year-old National Guard officer with a bright future drowns in water only a few inches deep. Later, a 13-year-old cheerleader disappears.

The Freeman family trailer is burned to the ground and the parents are found dead with gunshot wounds, but their teenage daughter and her friend are missing.

When teens Zainab and Ammar fall in love, their relationship is forbidden by her father - who will stop at nothing to ensure that his rules of honour are obeyed.

When a young mum disappears, there's no shortage of men in town for police to question. And, a seven-month-old baby is taken from his crib.

When a young man is shot in a street confrontation, all clues point to one man. And, Susan Osborne and her 14-year-old son mysteriously disappear.

Five young people disappear over a span of four years in the rural area of Lewis-Clark Valley. Investigators search for links to the mysterious cases.

When lonely teen Meagan Grunwald meets handsome felon Angel Garcia, it's love at first sight. But their whirlwind romance leaves a trail of death and devastation.

When Lisa Carlson is found killed in her home, it's thought that robbers surprised her during an intimate moment and killed her. But the scene was staged.

In July 1996, thousands are at Centennial Park for the Atlanta Olympics when a bomb explodes. The FBI investigates terrorism but end up tracking a serial bomber.

A wealthy psychiatrist and his son are shot dead. Investigators suspect a robbery until they realise that only a gun and a car are missing.

A 28-year-old man breaks up with his lover and disappears soon after. As the police search for him, a paper trail of suspicious text messages come to light.

Las Vegas Detectives must solve the murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

A body found in a California basement opens a decades-old mystery. As police investigate, they learn it belongs to a teenager missing since 1984.