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After the murder of a mother on a remote road, police dig into her bitter custody battle and uncover a disturbing bond between her ex and his mother.

Luke D'Wit poisoned his millionaire neighbours so he could take over their business. How did his 999 calls help the police bring him to justice.

A football coach is shot in front of dozens of witnesses, including his own family. A former NFL player sits at the centre of the investigation.

The Horror Of What Happened There. Is The Golden State Killer still a threat today? Investigator Paul Holes examines attacks in the idyllic town of Santa Barbara.

Investigators search for clues to identify the Golden State Killer. Could new DNA technology help put a face to the name.

A 23-year-old man goes missing in the small community of Beech Island, South Carolina. As his family desperately search, an ominous text message deepens the mystery.

In Ohio, a 20-year-old student goes missing while riding a bicycle home from her boyfriend's house. Detectives begin a frantic search to find her.

Vegas showgirl Debbie Flores Narvaez isn't afraid to ruffle feathers. When Debbie goes missing, investigators wonder if a jealous rival is responsible.

Teen mum Cheyenne finds acceptance in a new crowd by moving in with two girls and their boyfriends. But after Cheyenne gets her own beau, distrust leads to death.

A murdered teenager's body mysteriously turns up in the rural Iowa countryside. Will the smallest clue be the key to bringing her killer to justice.

After moving in with her new boyfriend, a woman is shot dead and an engaged couple are murdered. Will secrets from their past explain their deaths.

The body of a musician is found in an alleyway and a construction worker disappears on the job. Police desperately search for clues about these callous murders.

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.

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.

The family of a student are distressed when they receive a warrant for his arrest. A mother of five vanishes after leaving her house early one morning.

A mother of three is gunned down in a church basement. Police find surveillance footage showing a figure in full body armour stalking the building.

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 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.

After newlywed pharmaceutical rep Debbie Ashley is found dead in her car trunk, police suspect gang involvement. But soon, a stunning confession reveals dark secrets.

Aspiring architect Claudette Ficik charms everyone she meets with her warm personality, but one cold February day she disappears in broad daylight.

A body-building attorney gets her own reality series. A year later, investigators use the show to find out how she ended up a stabbing victim.

A deputy sheriff turns in his badge to pursue a career in acting. When a shooting leaves him injured and his wife dead, police learn there's more to this court TV star.

Alice Ruggles meets soldier Trimaan Dhillon on Facebook. Experts analyse Dhillon's terrifying behaviour after Alice is found dead.

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.