Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

In Tulsa, a man from out of town is found dead in his motel room and detective Michael Zenoni must wade through a web of secrets and lies to uncover the truth.

When police find the bodies of a woman, four children and a cat, they suspect a ritualistic murder. What they later discover proves even more shocking.

Richard Beasley’s daughter Tonya knows that her father has a shady past. When he embraces religion, she believes he’s turned over a new leaf. But Tonya is devastated to learn that her unwitting assistance has been used in the worst way.

Recently separated single mother Dana Laskowski is found strangled to death in her home on a night when her triplets are visiting their father. The crime scene suggests she knew her attacker, and the investigation reveals there are more than a few people who had an unhealthy obsession with Dana.

No one would suspect that the perfectly manicured lawns with trimmed hedges and fences lined up like toy soldiers would harbour such secrets, but sometimes things are not always what they seem.

Investigators hunt for the murderer of a teenage runaway found dead on a mountain road. Can they unpick the web of lies and false accusations surrounding her death?

Harry Aleman’s daughter Franky stands by her father through allegations that he is one of the Chicago Outfit’s top enforcers, and throughout his trial for murder. But can she continue to stand by him even when his second murder trial makes history?

Melissa Oxley is woken in the middle of the night to a shotgun blast and the smell of gunpowder, with her husband Ben dead beside her. The killer has vanished, but the bigger mystery is why was she left alive?

Poison has long been a weapon of choice, in cases of defence, to conquer jealousy, to gain inheritance and for revenge in crimes of passion. Poisonous Liaisons traces both the history and the science of poison in connection with modern crimes.

Detectives uncover a cold-blooded conspiracy as they investigate the murder of a church-going mother found dead on the floor by her young son.

Charles Manson’s so-called Family includes teenage Dianne, seduced into the group at the age of 14. Dianne witnesses Manson’s peace-and-love philosophy become dark, dangerous and evil. How will she survive one of history’s most enigmatic killers?

When 55-year-old jogger Bob Dorotick is found dead by the side of a countryside road with tire tracks leading from the scene, it is obvious he was murdered. But what is mysterious is that he wasn't hit by a car, he was bludgeoned, drugged and strangled, and then left by the side of the road. Somebody clearly wanted Bob dead, but who?

When a young Atlanta man is shot and left to die in the bushes, detectives believe a mysterious white town car is the key to finding the perpetrator.

A bizarre tip-off takes detectives into unchartered territory as they investigate the shooting of a restaurant manager found dead in an abandoned car.

Paul Snider’s roommate Patti sees the devastating effect Paul’s breakup with his superstar wife, Playboy Playmate Dorothy Stratten, has on his crumbling ego. As Paul spirals out of control, he destroys both Dorothy’s life, and Patti’s career.

When Carolyn Krizan-Wilson claims a barefooted burglar assaulted her and shot her husband Roy McCaleb to death, police spend years trying to track down the mysterious killer. It is only with the onset of dementia does Carolyn finally reveal the missing clues to solve Roy's murder.

In Tulsa, an unsolved case comes to life when new evidence sheds light on a dead man's friend.

Detectives investigate the shooting of a 14-year-old outside a high school, uncovering a simmering vendetta that began during a confrontation in the canteen.

'Lefty Guns' Ruggiero's granddaughter Ramona Rizzo makes it her mission to set the record straight when her grandfather's life is portrayed in the film 'Donnie Brasco.'

Satan worship may have come to the peaceful town of Idaho Falls when two friends are shot to death in their beds, with the words 'Satan loves you' left as a message in the kitchen. As the case widens, it becomes clear that there are several people who may have wanted these women dead, and Satan isn't one of them.

True crime series detailing cases of relationships which have ended in murder after intimate secrets and sordid affairs have been exposed.

A look at the crimes of Myra Hindley and Ian Brady, featuring interviews with the family of Keith Bennett, who are still campaigning to find his body.

Victims and police discuss the shocking crimes of entertainer Rolf Harris, who was jailed for a number of sexual offences in 2014. Dermot Murnaghan presents.

In Tulsa, a high-school football player is gunned down when his friends make a dangerous decision. Detectives must separate witnesses from suspects to find out who fired the fatal bullet.