Philip Leonetti

Philip "Crazy Phil" Leonetti was the youngest underboss in the history of the American Mafia at the age of 30, and, along with his uncle and boss—"Little" Nicky Scarfo, head of the Philadelphia crime family from 1981-91—was responsible for what is arguably the most violent reign organized crime has ever seen. Leonetti's major role was mobbing up Atlantic City after gambling became legal—a goal he was thoroughly successful in reaching. After the Scarfo family careened out of control amid incredible violence in the late '80s, Leonetti was convicted of murder and racketeering and, in an effort to reduce jail time, became the then highest-ranking official in Mafia history to turn state's evidence and cooperate with the federal government. His testimony directly led to the convictions of dozens of high-ranking and other made men, including John Gotti, Vincent Gigante, and his own uncle, Little Nicky Scarfo. He has been living in the Witness Protection Program for almost two decades.