Question: Which "boss of bosses" Mafia member was behind the murder of New York City police sergeant Joseph Petrosino?
Sentence (from "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.
Relevant evidence: Yes