Salvatore "Sammy the Bull" Gravano is an American former mobster who became underboss of the Gambino crime family. He played a major role in prosecuting John Gotti, the crime familys boss, by agreeing to testify as a government witness against him and other mobsters in a deal in which he confessed to involvement in 19 murders. After his release from prison in 2017, Gravano started a podcast and YouTube channel, showcasing his transition from a life of organized crime to a new public persona. He currently lives in Arizona and has managed to stay out of trouble since his release from prison in 2017.