
World's Most Evil Killers
The Sunderland Strangler, Steven Grieveson, killed four teenage boys in the early 90s.

The Sunderland Strangler, Steven Grieveson, killed four teenage boys in the early 90s.

The story of two friends who carried out the evil, jealousy-fuelled murder of Sadie Hartley.

In May 1990, convicted killer Jack Unterweger was freed from prison. He became a celebrated writer and a prison reform advocate in Austria until it was discovered that he killed nine more women.

45-year-old Stephen attempted to kill his parents and nephew in a car crash. After the plan failed, the ruthless killer mercilessly executed his elderly parents with a shot gun.

The story of the killer who took four lives during a killing spree after being inspired by horror films.

The story of a killer so evil that not even her own son could escape her clutches.

Over a 25-year career of murder, Richard Biegenwald killed at least six people.

In 1991, Christopher Hightower slaughtered an entire family to cover up a trail of fraud. He buried his victims in shallow graves. In 1993, he was sentenced to life without parole.

The Bayou Strangler deceived, bound, assaulted and murdered men as he drifted across South Louisiana.

Peter Moore was a sadistic serial killer who killed and mutilated four men in North Wales in 1995. The local cinema owner had an obsession with Nazis and sadomasochistic sex.

Wayne Adam Ford is an American serial killer who strangled and dismembered three of his four victims.

Danilo Restivo murdered two women nine years apart: sixteen-year-old Elisa Clapps in Italy and Heather Barnett in Bournemouth.

The story of Mark Martin, who murdered three women in his quest to become Nottingham's first serial killer.

Sante and her 23-year-old son Kenny Kimes were a murderous duo who killed three people in the late 90s, including an 82-year-old woman.

Paul Michael Stephani became etched into the minds of all who knew him as the notorious, weepy-voiced killer.

Deadly consequences come from a friendship between two murderers who met in prison.

The story of serial killer Geoffrey Evans and his accomplice John Shaw, who hit headlines in 1976.

The horrifying story of a computer engineer who lured a 14-year-old school boy to his flat and killed him.

A cult killer portrayed himself as a pillar of the community, but his story was deeply sinister.

The Bayou Strangler deceived, bound, assaulted and murdered men as he drifted across South Louisiana.