Rivals and other contemporaries discuss Ronnie and Reggie Kray, the notoriously violent gangsters who ran London's East End in the 1950s and '60s.

The Krays: The Myth Behind the Legend

Attached to almost every unsolved gangland murder in London over the last 50 years, Freddie Foreman is "The Godfather". In this special documentary, Foreman reveals the audacious details of the heists, double crossings, shootouts, murders and betrayals he was involved in and what has made him Gangster No. 1.