A Killer's Mistake

For every murderer behind bars, there was a mistake that gave them away. Investigators and those close to the case discuss the key error that led to an arrest.

Serial killer Donald Miller was jailed for the murder of four victims and two murder attempts. The survivors speak out as Miller's parole date draws near.

The disappearance of Denise Williams' husband leaves her devastated. But, when his mother investigates, she discovers the heart-wrenching truth of his demise

When Katherine Smith connects with Tony Moore on a dating site, she believes she's finally found love. But her dreams shatter when his true identity is revealed.

Natalie and Paul had a seemingly idyllic relationship. But when she suddenly disappears, the investigation uncovers a dark reality of control and violence.

17-year-old Jayden Parkinson was attracted to the bad boy allure of Ben Blakeley. But he started to lead her down a chaotic path that resulted in her disappearance.

When a kind old man is found murdered his family are devastated. However, the police investigating the case discover his niece's bingo habit and backlog of debts would lead her to kill.

Ten iconic and international murder stories from the last three years featuring interviews with convicted killers.

In Louisiana, 23 young men are found dead over a nine-year period. Investigators search for the Bayou Strangler but a break in the case comes only after a key error by the killer.

The case of Iain Lawrence, who thought he had hit the jackpot when he found love with a successful businesswoman - but things took a deadly turn.

Douglas Perry was obsessed with prostitutes and shot three dead in 1990. Yet when Doug became Donna, she accepted no responsibility for Doug's crimes.

A cunning fraudster makes a habit out of exploiting women for money after successfully murdering his first wife for a life insurance payout.

When a boxer is paralysed in an accident, an amateur fighter named Thomas befriends him and becomes his carer. However, his kindness comes at the ultimate price.

An in-depth look at how Arizona serial killer William Inmon was brought to justice after killing three people.

The story of how police closed the net on rogue cop Kent McGowen after he killed a woman at her home in Houston in 1992.

A look at how police tracked down Stephen Port, the east Londoner responsible for murdering at least four men and committing multiple rapes.

A closer look at the subtle clues that led police to Jesse Matthew, a former cab driver who kidnapped and killed two Virginia college students.

A look at how detectives uncovered the crimes of wife-killer Nat Fraser, revealing how the scheming murderer botched the seemingly perfect plot.

A look at the key errors made by murderers that led to their arrest, focusing this time on Paul Hutchinson, who abducted, raped and strangled Colette Aram in 1983.