They came for him just after dawn. As 400 paramilitary carabinieri surrounded the Caccamo, Sicily, farmhouse and two helicopters hovered overhead, police burst through the door. Inside, they found two men. One of them produced documents saying he was Giuseppe di Fresco. His captors knew better. The man's identity: Michele Greco, also known as ll Papa, the pope of the Sicilian Mafia. "Yes, I am Greco," he is said to have admitted after several hours of interrogation. "You are behaving like gentlemen, and I don't want to waste your time."
Italian police say Greco is the chief of the commission that...