Salvatore "Sammy the Bull" Gravano. Sammy is an Italian-American former underboss of the Gambino crime family. He is known as the man who helped bring down John Gotti, the family's boss.

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of a new Salvatore "Sammy the Bull" Gravano. Sammy is an Italian-American former underboss of the Gambino crime family. He is known as the man who helped bring down John Gotti, the family's boss.

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