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A young mother vanishes leaving behind puzzling clues and disturbing questions. Will a needle in the mud reveal the truth behind her disappearance.

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

Painful questions torment an Ohio husband after his wife's brutal murder - in particular the community's doubts about whether he had been her killer.

When Father Rivera is called in the middle of the night to perform the last rites for a dying man, the night ends with the priest's shocking murder.

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.

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.

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 mother takes matters into her own hands when the police investigation into her daughter's murder stalls. Can she eventually crack the case and catch the killer.

A woman gets involved in the investigation into her sister's murder. Her tenacity and unrelenting quest for justice leads to crucial evidence.

After one of her daughters is murdered, a mother vows to find out the truth. As more evidence is uncovered, she realises the killer may be lurking nearby.

A college freshman is shot in her family's home. The victim's older sister works closely with the investigators to uncover the truth and put the killers behind bars.

Proof. When a mother is killed in a tragic trucking accident, her family begin to question whether it was actually premeditated murder. Now, they fear for her son.

Two women who work for a tax attorney know he is prone to hysterical outbursts. But, when he turns violent it reveals some terrifying secrets.

We All Go A Little Mad. Police find a family dead, a horror film still playing, a bloody mask nearby - and a letter addressed to the woman who voiced 'The Exorcist' demon.

In Genoa, Ohio, John Eichner, his wife and kids look like a happy bunch, but behind closed doors a disturbing pattern of torment and gaslighting plays out for years.

Move On. Popular and outgoing, Rowena aspires to be a teen psychologist. But her dreams turn into a nightmare when a pathological love connection shatters everything.

After United Airlines Flight 629 explodes in mid-air, crash investigators wonder if it was an accident at all. Can it be the first-ever act of murder-by-airplane-bombing.

When two women are found brutally murdered in their flat, the NYPD is under pressure to catch the killer - but make a tragic misstep while investigating.

A mother takes matters into her own hands when the police investigation into her daughter's murder stalls. Can she eventually crack the case and catch the killer.

A woman gets involved in the investigation into her sister's murder. Her tenacity and unrelenting quest for justice leads to crucial evidence.

Proof. When a mother is killed in a tragic trucking accident, her family begin to question whether it was actually premeditated murder. Now, they fear for her son.

Two women who work for a tax attorney know he is prone to hysterical outbursts. But, when he turns violent it reveals some terrifying secrets.

On Monday, January 28th, 1996, the morning after Super Bowl, a campus worker at Tustin High School, California discovers a bloody corpse on the tennis court.

The Curious Case of the Persian Violet. In 2004, 27-year-old Jarrod Davidson is shot dead outside his apartment. Next to him is a suspicious potted plant. Who killed him.

An oil executive goes missing in front of his New Jersey home. Police fear a medical emergency until a ransom note arrives from an eco-terrorist organization.

Washington Redskins star Sean Taylor is shot dead by an intruder in his Miami home. And when it comes to the rich and famous, it seems like everybody has a motive.

In 2013, 17-year-old Alexis Murphy, rising social media star and athlete, disappears along Route 29 with no trace until a security video reveals a chilling clue.

In August 1992, Tennessee landowner Allen Roberts arrives home to discover his wife is missing. Suspicion soon falls on him, but is someone else the culprit.

Debora Gail Moody vanishes from her home in Ludowici, Georgia. A decade passes with no answers, until a confession reveals chilling details of her disappearance.

When John Thurberg is murdered at work, the motive behind the crime is unclear. But when police interview his employees, they uncover a web of secrets and lies.

In 1970s Detroit, a murder rocks an African-American neighbourhood. Police think they've got the killers - but it will take 47 years for the truth to emerge.

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.

In the mountains of Colorado a young pilot goes missing without a trace, leaving behind her baby. Police unravel a story far more horrifying than they imagined.

A quiet rural town is rocked when two schoolgirls are found murdered. Police discover one of the girls may have recorded her killer with her phone.

Former prosecutor Sunny Hostin re-examines the premeditated murder of 23-year-old mother Danielle Marshall. Who was the killer and how were they caught.

A shooting in a luxury building sends shockwaves through an upscale neighbourhood. Detectives uncover a list of suspects and a plot born out of economic envy.

As a teenager, Nick Carter becomes famous with boy band The Backstreet Boys. Years later, former popstar Melissa Schuman alleges that Carter sexually assaulted her.

Melissa Schuman deals with Nick's fans after her assault allegations, and another victim comes forward. But the most shocking ally is Nick's brother, Aaron Carter.

When 14-year old Gloria Pointer is found raped and murdered in an alleyway, it is the start of a 30-year quest for answers by her mother, determined to seek justice.

In 1983 in Ohio, a 19-year-old nurse's aide is found dead after a night out with her best friend. A riveting police investigation reveals her fate.

The murder of 10-year-olds Holly Wells and Jessica Chapman in 2002 shocked the UK. Experts study media interviews of their killer, Ian Huntley, to expose his lies.

What exposed Tracie Andrews' lie that a road rage attack killed her lover? Mike Gifford-Hull's TV plea for his missing wife Farsi hides the truth.

A mother from Texas suddenly drops out of contact. Police believe she may be taking a break somewhere, possibly with a new man. But Julie's family fears the worst.

When Tom disappears on a job at a Green Bay paper mill, no one is talking to detectives. Is it a conspiracy of silence, or a tragic miscarriage of justice.

When the body of loving father, Re'Mano Campbell, is found slain in his house in Prichard, AL, local investigators unravel a disturbing web of lies.

When 93-year-old Penny Knell is admitted to a special care facility, a devious mastermind is waiting there to prey upon society's most vulnerable.

In Michigan, a simple affair between two colleagues turns complex as the lovers are willing to do anything - even commit murder - to protect their secret.

Three men die over a span of 12 years, with no suspicion of wrongdoing. But when a deadly car explosion rips through Florida, a new investigation begins.

A young mother vanishes leaving behind puzzling clues and disturbing questions. Will a needle in the mud reveal the truth behind her disappearance.

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

Painful questions torment an Ohio husband after his wife's brutal murder - in particular the community's doubts about whether he had been her killer.

When Father Rivera is called in the middle of the night to perform the last rites for a dying man, the night ends with the priest's shocking murder.

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.

A suspected serial killer prowls Hollywood. As the number of victims climbs, one brave woman fights back fiercely and manages to survive.

Actor Robert Blake finds his wife, Bonny Lee Bakely, dead in the couple's car. The police investigation history uncovers a story of ambition and betrayal.

A radio station intern is murdered, launching a long and frustrating investigation. Eventually, forensic genealogy leads to a man on the run for decades.

A preacher finds his wife brutally murdered, the apparent victim of a home invasion. He and their two sons have alibis, but several details don't add up.

For 42 years, Carl Sutcliffe has carried the stigma of his brother's atrocious crimes. He shares what it was like the day he found out his brother was a killer.

A young woman vanishes into a patrol car. For 35 years, she's a Jane Doe, until hypnosis reveals a clue that unmasks a predator hiding in plain sight.

A woman vanishes while on a Hawaiian vacation to celebrate her 29th birthday. Police trace her movements to a Waikiki hotel, covered by CCTV cameras.

An elderly woman is beaten to death in her Texas home. The only clues are a trail of strange credit card transactions - and surveillance video.

In 1975, the Indiana Slasher attacks three girls, leaves them for dead in a cornfield and then disappears into the night. Will justice ever be served.

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 woman and her family strike it rich, and Hollywood comes knocking to give them their own show - but not everyone wants this reality star to shine.

Proof. When a mother is killed in a tragic trucking accident, her family begin to question whether it was actually premeditated murder. Now, they fear for her son.

Two women who work for a tax attorney know he is prone to hysterical outbursts. But, when he turns violent it reveals some terrifying secrets.

A mother takes matters into her own hands when the police investigation into her daughter's murder stalls. Can she eventually crack the case and catch the killer.

A woman gets involved in the investigation into her sister's murder. Her tenacity and unrelenting quest for justice leads to crucial evidence.

After one of her daughters is murdered, a mother vows to find out the truth. As more evidence is uncovered, she realises the killer may be lurking nearby.

A college freshman is shot in her family's home. The victim's older sister works closely with the investigators to uncover the truth and put the killers behind bars.

Proof. When a mother is killed in a tragic trucking accident, her family begin to question whether it was actually premeditated murder. Now, they fear for her son.

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.

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.

42-year-old Miami mum Raquel Calderin vanishes without a trace on her way home from work. The investigation leads detectives into a disturbing family picture.

26-year-old car dealer Christopher O'Brien takes a strange man for a test drive and never returns. Did O'Brien's criminal past finally catch up with him.

Film director Adrienne Shelly is discovered hanging by a bed sheet in her bathroom. It looks like a suicide, but her husband insists it was murder. What's the truth.

Just after moving with his girlfriend, Daniel Ott is shot dead by an intruder. A stunning coincidence leads to one of the USA's the most dangerous criminal rings.

17-year old Shafelia's disappearance was a mystery - until her sister is arrested for a robbery. Carol Wardell vanished and her husband left tied-up.

Bestselling author, Helen Bailey, was a wealthy widow. After finding love again with Ian Stewart she vanished. He helps in the search - but was it a cover-up.

When computer programmer and single mum Cari Farver goes missing from a small town in Iowa, it will take the authorities across state lines to crack the case.

A young mother is brutally murdered inside her own home. Will her family's relentless quest for justice help put her killer behind bars.

Following the gruesome discovery of a woman's burned remains, Texas investigators follow a trail of clues originating from the victim's own lost dog.

Robert Champion suddenly dies in the back of the marching band bus. An autopsy points to foul play, exposing a dirty secret inside the premiere marching band.

The shooting of a football coach inside a high school triggers a lockdown in the middle of a school day. Police race to track down an active shooter.

42-year-old Miami mum Raquel Calderin vanishes without a trace on her way home from work. The investigation leads detectives into a disturbing family picture.

26-year-old car dealer Christopher O'Brien takes a strange man for a test drive and never returns. Did O'Brien's criminal past finally catch up with him.

17-year old Shafelia's disappearance was a mystery - until her sister is arrested for a robbery. Carol Wardell vanished and her husband left tied-up.

Bestselling author, Helen Bailey, was a wealthy widow. After finding love again with Ian Stewart she vanished. He helps in the search - but was it a cover-up.

42-year-old Miami mum Raquel Calderin vanishes without a trace on her way home from work. The investigation leads detectives into a disturbing family picture.

26-year-old car dealer Christopher O'Brien takes a strange man for a test drive and never returns. Did O'Brien's criminal past finally catch up with him.

Film director Adrienne Shelly is discovered hanging by a bed sheet in her bathroom. It looks like a suicide, but her husband insists it was murder. What's the truth.

Just after moving with his girlfriend, Daniel Ott is shot dead by an intruder. A stunning coincidence leads to one of the USA's the most dangerous criminal rings.

17-year old Shafelia's disappearance was a mystery - until her sister is arrested for a robbery. Carol Wardell vanished and her husband left tied-up.

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.

During an armed robbery, a father of three is fatally shot. 23 years later, another family questions if the wrong man is behind bars.

A burning car is found by the side of a highway on the same night a single mother of two is reported missing. The two events lead investigators to a notorious criminal.

An air force veteran disappears along with his savings. Detectives discover a woman has been draining his accounts, then uncover a conspiracy of greed and murder.

In 1994, Lake Orion, Michigan is rocked by a vicious murder. The crime is a mystery, until police expose a strange and twisted plot that no one saw coming.

When three women die of the same mysterious illness, the hunt is on to prove their deaths were no accident. Can detectives unravel this twisted tale of deceit.

In Phoenix, a wave of late night sexual assaults appears to be the work of a serial rapist, who targets women in their own homes while they sleep.

When Jamey Walker is kidnapped and murdered in the spring of 1981, her mother Eleanor dedicates the rest of her life to finding the killer.

I Always Knew I Could Kill. Patrick Pidock's daughter lived in constant fear of her father's sudden, violent outbursts. But no one could know what he was truly capable of.

After a tragic murder in Cornwall that left his sister and four of her children dead, Peter Wyatt opens up about his violent, controlling brother-in-law, Lee Ford.

A young mother is brutally murdered inside her own home. Will her family's relentless quest for justice help put her killer behind bars.