"Sammy the Bull" Gravano is a former underboss of the Gambino crime family who was instrumental in the conviction of Gambino boss John Gotti and led to the downfall of several other mobsters.

Peter Gotti was convicted of trying to have Mafia turncoat Salvatore “Sammy the Bull” Gravano killed as payback for his testimony against Gotti’s older brother, John. Federal prosecutors argued that ...

PHOENIX – The news of widespread sports betting and Mafia-backed poker games that led to the arrest of an NBA coach and player did not surprise Salvatore “Sammy the Bull” Gravano, the former underboss ...

NEW YORK -- The brother of the late mob boss John Gotti was charged Monday with plotting to kill Salvatore "Sammy the Bull" Gravano, the Mafia turncoat who once dared the Gambino crime family to hunt ...

Former mafia boss 'Sammy the Bull' on NBA gambling scandal "Sammy the Bull" Gravano is a former underboss of the Gambino crime family who was instrumental in the conviction of Gambino boss John Gotti ...