World's Most Evil Killers

The crimes of Lonnie Franklin, an American serial killer who was given the nickname the Grim Sleeper, and was responsible for at least 10 murders and one attempted murder in Los Angeles.

The story of William Bonin, the savage serial killer who took the lives of more than 21 teenage boys and left their bodies strewn across freeways in California.

The crimes of Jerry Brudos, whose disturbing shoe fetish played a part in the gruesome murders he carried out on four young women in Oregon between 1968 and 1969.

A profile of the serial killer Keith Jesperson, whose chilling confession letters to the media and prosecutors were signed off with smiley faces.

The story of Colorado killer Arthur Shawcross, whose bloodthirsty murder spree lasted more than a decade and claimed over a dozen lives.

The crimes of Doug Clark and Carol M Bundy, a cunning pair of lovers-turned-murderers who targeted young girls and sex workers on LA's Sunset Strip in the late 1970s, brutally killing for their own twisted pleasure.

The story of Patrick Wayne Kearney, one of the most prolific serial killers in America, with a victim list of at least 25 - the youngest aged just five.

A profile of one of Oregon's most prolific killers, Dayton Leyroy Rogers, who would prowl Molalla's forests in search of prostitutes to satisfy his lust for violence.

A profile of triple-murderer Richard Roszkowski, who killed his ex-girlfriend Holly Flannery, her nine-year-old daughter Kylie and his former room-mate Thomas Gaudet in September 2006.

A profile of serial killer Cesar Barone, currently serving a life sentence for the rape and murder of four women in Oregon in the early 1990s.