Sammy Gravano reveals the moment he decided to cooperate with the government against John Gotti

Sammy "The Bull" Gravano revealed that secret recordings of John Gotti discussing mob activity convinced him that the Mafia oath was broken and it was time to cooperate with the government. The final trigger for his decision was learning that Gotti planned to use these tapes in court to turn around, accusing Sammy of being a monster before a jury.