He may have been tight with Bonanno after the Castellamarese war, but he was brought into Cosa Nostra by Masseria. Bonanno even says in his book, after the death of Masseria, during a big meeting in Chicago, Maranzano acknowledged Capone as once part of the Masseria faction, but that he wanted peace, thus he acknowledged Capone as the head of the Chicago Family, of course this was after the Castellamarese War, and liquor beefs had decimated the Sicilian Mafia inducted Aiello brothers.