Which "boss of bosses" Mafia member was behind the murder of New York City police sergeant Joseph Petrosino?
Vito Cascioferro Vito Cascioferro or Vito Cascio Ferro (January 22, 1862 – September 20, 1943), also known as Don Vito, was a prominent member of the Sicilian Mafia. He also operated for several years in the United States. He is often depicted as the "boss of bosses", although such a position does not exist in the loose structure of Cosa Nostra in Sicily.
Salvatore Bonanno Salvatore Vincent "Bill" Bonanno (November 5, 1932 – January 1, 2008) was the son of Cosa Nostra boss Joseph Bonanno. Although his father never intended for him to be the underboss of the Bonanno crime family, his appointment to high positions in the syndicate precipitated a "mob war" which led to the Bonanno family's exile to Arizona. Later in life, he became a writer and produced films for television about his family.