Sammy 'The Bull' Gravano

Salvatore "Sammy the Bull" Gravano (born March 12, 1945) is an American former mobster who rose to the position of underboss in the Gambino crime family of New York City before becoming a government witness. As the underboss, Gravano played a major role in prosecuting John Gotti, the crime family's boss, by agreeing to testify as a government witness against him and other mobsters in a deal. As part of the agreement, Gravano confessed to his involvement in at least 19 murders, although he was also responsible for a number of other crimes, including the 1977 murder of a 16-year-old boy with no ties to the Mafia, who was shot and killed after witnessing Gravano and an associate carry out a drive-by shooting. Originally an associate for the Colombo crime family, and later for the Brooklyn faction of the Gambino family, Gravano was part of the group in 1985 that conspired to murder Gambino boss Paul Castellano. Gravano played a key role in planning and executing Castellano's murder, along with John Gotti, Angelo Ruggiero, Frank DeCicco, and Joseph Armone.