The DiNunzio's had nothing to do with the Rincon Indian Casino scam. The only link was the Outfit's man in LA -- Chris Petti.

Petti was the mastermind of the casino takeover. Years earlier however, he was tasked by Joe Ferriola to collect Tony Spilotro's outstanding loans from his loanshark customers throughout Vegas following Spilotro's death. So he was introduced to two fat fuck muscle guys (the DiNunzio brothers) who were merely used as enforcers to collect debts. Petti simply sent them to Las Vegas.