World's Most Evil Killers

The story of the brutal Los Angeles serial killer Lonnie Franklin, a murderer known as the 'Grim Sleeper' due to a years-long lull in his crimes who claimed the lives of at least nine women and a teenage girl.

William Bonin became known to some as the 'Freeway Killer' and is believed to have raped, tortured, and murdered at least 21 boys and young men across California before his execution in 1996.

An exploration into the crimes of Jerry Brudos, whose disturbing shoe fetish played a part in the gruesome murders he carried out on four young women.

Keith Jesperson brutally killed at least eight women across six US states in the early 1990s and became known as 'The Happy Face Killer' for his chilling confession letters signed off with smiley faces.

The story of the notorious murderer, Arthur Shawcross, who murdered over a dozen victims from 1972 to 1989 in a spree of terror that earned him the nickname 'The Genesee River Killer'.

Known as the 'Sunset Strip Killers', Douglas Clark and Carol Bundy terrorised the streets of Los Angeles with a series of twisted murders in 1980 targeting vulnerable women and children.

The story of one of the most prolific serial killers in the US, Patrick Wayne Kearney, who became notorious as the 'Trash Bag Killer' when he took the lives of at least 21 people in California.

Brutal murderer Dayton Leroy Rogers targeted women on the streets of Oregon in the 80s before he took their bodies into the forest, leading him to be known as 'The Molalla Forest Killer'.

A profile of Richard Roszkowski, the Connecticut triple-murderer who killed his ex-girlfriend Holly Flannery, her nine-year-old daughter, and another man in a brutal attack in 2006.

A profile of Cesar Barone, the serial killer who took the lives of at least four women in and around the area of Portland, Oregon, in the 1990s before being handed a death sentence.