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Heather and Daniel's teenage romance blossoms into a marriage. But with Daniel's twin brother always hanging around, passion turns to poison.

Manjit and Mukhtiar get married and set up a home together in suburbia. But fierce arguments soon turn their dreams into a nightmare.

While a young man worries about his missing sister, a young woman's body is found in the Arizona desert - and investigators begin the hunt for her identity.

In 1994, a 55-year-old businessman is found shot in his kitchen. The police suspect his disabled son, but would he have had the capability to carry out a murder.

In 1985, Detective McLean responds to a report that a young mother has been shot dead. Her step-daughter confesses to the killing, but is she telling the truth.

Relatives of former Illinois police sergeant and convicted murderer, Drew Peterson, reveal how his shocking crimes impacted the family and changed their lives forever.

The smell of charred meat wafting through a small Minnesota mining town leads to a tragic discovery. Before they can investigate, police must identify the body.

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.

Relatives of serial con-woman and murderer, Sante Kimes, reveal how her shocking crimes impacted the family and what it was like having a relative with murder on her mind.

A lively slumber party in the town of McMinnville turns into a nightmare when a loving mother, her young daughter, and her daughter's friend, are murdered.

Detective Derrick Levasseur and Dr. Kris Mohandie investigate unsolved murder cases. They re-examine old evidence and new clues and try to finally solve these crimes.

In 2013, 51-year-old Robin Pope's body was washed ashore just one mile from her ex-husband's home. Did she drown, or was this a malicious act by her ex.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

An Ohio officer fights for his life when a suspect overpowers him. When a Wisconsin man shoots his co-workers police must find him to stop the threat.

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.

Seven years after the murder of Biggie Smalls, the LAPD sets up a task force to uncover the truth. A key breakthrough turns the case on its head.

As the LAPD Task Force piece together what happened to Biggie and Tupac, stories of police corruption play out in the press. And, an FBI agent has a theory of his own.

Two of the most prominent law enforcement voices on the Biggie and Tupac story speak on camera for the first time. It's time to decide who killed Biggie and Tupac.

Detective Derrick Levasseur and Dr. Kris Mohandie investigate unsolved murder cases. They re-examine old evidence and new clues and try to finally solve these crimes.

In 2013, 51-year-old Robin Pope's body was washed ashore just one mile from her ex-husband's home. Did she drown, or was this a malicious act by her ex.

When 16-year-old Becky Watts vanished without trace suspicions fell on her step-brother and his partner. Experts analyse police interviews for clues.

When April Barber was murdered at a remote beauty spot, her husband said he tried to stop the killer and even appealed for help on TV. Experts analyse his deception.

In 2013, 51-year-old Robin Pope's body was washed ashore just one mile from her ex-husband's home. Did she drown, or was this a malicious act by her ex.

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.

Relatives of serial con-woman and murderer, Sante Kimes, reveal how her shocking crimes impacted the family and what it was like having a relative with murder on her mind.

A lively slumber party in the town of McMinnville turns into a nightmare when a loving mother, her young daughter, and her daughter's friend, are murdered.

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.

Miami businessman Henry Diaz goes missing the night before a family vacation. His business success has earned him many enemies - even within his own family.

An unassuming teen disappears after becoming involved with an attractive young mum struggling in a difficult relationship. Where is he now and what is Misty hiding.

In Dunlap, Tennessee, a body is found on the banks of the river. Detectives piece together the unknown man's final moments to find the culprit.

Dorian Bluford's family were anxious when he told them he was moving to live with a friend they did not know. Later, he is found brutally murdered.

The dismembered body of a missing woman turns up in trash bags. A detective's pursuit of the suspect prompts the question: Could this man be a serial killer.

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.

G Or Gent? Baron 'Dirty' Colon goes on the reality show 'From G's to Gents,' hoping to change his life and win the 100k prize. His real motivation is a secret.

When 13-year-old Rachanda Pickle goes missing, suspicion falls on her father. But discovery of connected crimes from the 1970s suggests the truth may be more complicated.

Detectives suspect that Rachanda's disappearance is connected to other crimes. Now, they must close in on a criminal who has evaded justice for decades.