In 1984, Castellano was arrested and indicted in a RICO case for the crimes of Gambino hitman Roy DeMeo's crew. The following year, he received a second indictment for his role in the Mafia's Commission. Facing life imprisonment for either case, Castellano arranged for Gotti to serve as an acting boss alongside Thomas Bilotti, Castellano's favorite "capo", and Thomas Gambino in his absence. Gotti, meanwhile, began conspiring with fellow disgruntled "capos" Frank DeCicco and Joseph "Joe Piney" Armone and soldiers Sammy Gravano and Robert "DiB" DiBernardo (collectively dubbed "the Fist" by themselves) to overthrow Castellano, insisting despite the boss' inaction that Castellano would eventually try to kill him. Armone's support was critical; as a respected old-timer who dated back to the family's founder, Vincent Mangano, he would lend needed credibility to the conspirators' cause.