Tonight's programme charts the rise and fall of Ronnie and Reggie Kray, among Britain's most notorious gangsters. Using eyewitness interviewees from various killings, newly discovered film footage and previously unpublished scene-of-crime pictures, The Underworld turns the clock back to expose the Kray firm's brutal reign of terror.
Albert Donoghue, who was Reggie's right-hand man, explains how he was recruited to the firm after one of the twins shot him in the leg. After Ronnie Kray shot
George Cornell, the gang went into hiding and, according to Donoghue, "when it came on the news that he was dead a cheer went up". He describes how the twins built their empire of fear, with face slashings meted out as punishments, and tells how the Krays goaded each other on to commit murder.
Producer Frank Simmonds
Series producer Lorraine Heggessey