They were two very different godfathers. John Gotti was "dapper Don, the streetwise, publicity-loving head of the Gambino family in New York. Toto Riina was the psychopathic head of the Sicilian Mafia. As revealed in this fourth and final episode of The Mafia, between them they would bring the Mafia to crisis point. Gotti blasted his way to power, brazenly murdering his rival, Paul Castellano, during the Manhattan rush hour. He defied the law to come after him. But rising to his challenge proved tough for law enforcers as Gotti beat the rap in thee separate trials by intimidating witnesses and bribing jury members. In Sicily, Mafia don Toto Riina ('the beast') seemed equally untouchable, particularly after dispensing with his determined opponent, magistrate Giovanni Falcone.

• Charlie Smith

• Ray Liotta
• John Gotti
• Henry Hill