Aka The Toybox Killer, suspected of killing upto 60 people but convicted of none. 

Danny Rolling aka The Gainsville Ripper was a serial killer who killed 8 people and liked to pose the bodies afterwards.

James Patterson Smith brutally tortured teen Kelly Anne Bates over a period of a month before killing her.

Britain's youngest female double murderer, Lorraine Thorpe. 

Episode one about John Cooper, a serial killer from Wales, United Kingdom.