Trailer: The Gameshow Serial Killer: Police Tapes
Susanna Reid looks at how one of Britain's most cunning serial killers John Cooper was finally caught after 20 years with the help of his appearance on the game show Bullseye.
Susanna Reid looks at how one of Britain's most cunning serial killers John Cooper was finally caught after 20 years with the help of his appearance on the game show Bullseye.