Salvatore ‘Sammy the Bull’ Gravano is a criminal, best known as the underboss of the Gambino family, which was involved in a host of criminal activities. Sammy is also known for his close association with four of the ‘Five Families’ that were involved in organized crime. Originally from Colombo crime family, Sammy had planned the murder of Paul Castellano, and also had a close relationship with Italian-American gangster John Gotti. Sammy is also known for testifying against John Gotti and helping the FBI jail him for life. There was a time when Gravano was the highest ranked member of the ‘Five Families’, earning close to $20 million per year. Sammy’s life has so far been an interesting one. While he was constantly trying to let go of his criminal activities, his past kept pulling him into the vortex of illegal businesses. Sammy was imprisoned for tax evasion, attempted murders and drug trafficking. He was released in 2017, with federal parole slapped on him for the rest of his life.