Britain's Most Evil Killers

- Season 3

(2019)

Colin Ireland: He decided to become a serial killer and brutally snatched away the lives of five innocent men. This is the story of the calculated murderer.

Angus Sinclair: A profile of the man responsible for the cold-blooded murder of two teenage girls in 1977, known as the World's End Murders.

Robert Black: A look at the Scottish serial killer who preyed on young girls between the ages of five and eleven throughout a six-year killing spree.

Mark Hobson: Four vicious murders put Mark Hobson at the centre of a nationwide manhunt as he became Britain's most wanted man. This is his story.

David Heiss: A look at the 21-year-old killer who brutally took the life of British student Matthew Pyke, after developing an obsessive infatuation with his girlfriend.

Trevor Hardy: A look at the brutal murderer, dubbed The Beast of Manchester, who claimed the lives of three teenage girls in the 70's

Derrick Bird: Meet the perpetrator of one of the worst firearm crimes in British history. After brutally killing 12 people in Cumbria, he then turned the gun on himself.

John Cooper: A look at the Welsh serial killer known to some as The Wildman, who got four life sentences for a string of gruesome murders and sexual assaults.

Vincent Tabak: A chilling look at the man responsible for one of the biggest police investigations in Bristol - the cold-blooded murder of Joanna Yates.

Christopher Halliwell: A look at the convicted double-murderer responsible for taking the lives of Becky Godden-Edwards in 2007 and Sian O'Callaghan in 2011.