Joe Bonanno uncle Giuseppe Bonanno, who had no children was the boss before he was murdered, then his other uncle Stefano Bonanno (who descendants are still involved in the mafia in Castellammare del golfo and father of Francesco Bonanno) was killed, but not before Stefano made sure the last brother Giovanni Bonanno went to Tunisia to be safe. Salvatore Bonanno is said to have been the head of the Brooklyn Castellammare community, but I really think it was actually Francesco Garofalo father as he was married to one of Salvatore Bonanno sisters. Once Salvatore Bonanno came back to Sicily, he became head of the clans, with Stefano Magaddino (father of Stefano Magaddino of Buffalo), Carmelo Coppala, and Giovanni Bonventre (uncle to the Bonventre brothers in the states) blessings. He was drafted and died from illness, not murdered. That scene in the Bonanno movie where it shows Salvatore being killed in bed with a mistress, was actually Stefano Bonanno, who had many children out of wedlock, which would explain why Joe Bonanno said Stefano Bonanno had no children.