World's Most Evil Killers

Lee Ford kills his wife and four stepchildren in a cold-blooded murder spree.

A 23-year-old killer murders 17-year-old former head girl Georgia Williams in 2013.

A killer attacks his ex-girlfriend in a jealous frenzy and commits a brutal murder.

Stuart Campbell is convicted for the murder of his niece, even though her body has never been found.

Sarah Williams and Katrina Walsh carry out the jealousy-fuelled murder of Sadie Hartley.

Pawel Relowicz rapes and kills 21-year-old Hull student Libby Squire.

The story of a killer who took four lives during a chilling two-day killing spree in 2004.

Geoffrey Evans and his accomplice John Shaw hit headlines after the murders of two women in Ireland.

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

Malcolm Green is jailed for life for the brutal murder of a Cardiff prostitute.

John Allen and his teenage accomplice carry out a brutal series of shootings that kill ten people.

A prolific serial killer is dubbed "The Pig Farmer Killer" by the media.

A serial killer brutally snatches away the lives of eight women during a decade-long killing spree.

A killer murders her own son and becomes the first woman to be executed in Florida since 1848.

A terrifying killer murders four victims before being caught while trying to claim his fifth.

The I-95 killer, who brutally killed six men in 1994, is executed three years later.

The Baton Rouge Serial Killer, known for murdering seven women is sentenced to death for his crimes.

The first woman executed by lethal injection after taking six lives.

A cold-blooded serial killer takes the lives of eleven people during a decade-long murder campaign.

A serial killer works as a nurse in Texas and kills infants by injecting them with drugs.