Calcedonio Di Pisa

Only later did it become clear that Mafia boss Michele Cavataio had killed Di Pisa, according to Tommaso Buscetta after he became a cooperating witness in 1984. Cavataio had lost out to the Grecos in a war of the wholesale market in the mid 1950s. Cavataio killed Di Pisa in the knowledge that the La Barberas would be blamed by the Grecos and a war would be the result. He kept fueling the war through other bomb attacks and killings.

Di Pisa was killed on December 26, 1962, on the Piazza Principe di Camporeale in Palermo while walking to a tobacco kiosk. Three men shot him with a sawn-off shotgun and a revolver. None of the bystanders on the square could even recall hearing any shots, when questioned by the police.

Di Pisa was present at a series of meetings in the hotel Delle Palme and the Spanò seafood restaurant between top Italian-American and Sicilian mafiosi in Palermo on October 12–16, 1957. Joseph Bonanno, Lucky Luciano, John Bonventre, Frank Garofalo, Santo Sorge and Carmine Galante were among the American mafiosi present, while among the Sicilian side were Salvatore "Ciaschiteddu" Greco and his cousin Salvatore Greco, known as "l'ingegnere" or "Totò il lungo", Giuseppe Genco Russo, Angelo La Barbera, Gaetano Badalamenti, Totò Minore and Tommaso Buscetta.

Calcedonio Di Pisa (Italian pronunciation: [kaltʃeˈdɔːnjo di ˈpiːza]; October 11, 1931 – December 26, 1962), also known as Doruccio, was a member of the Sicilian Mafia. He was the boss of the Mafia family in the Noce neighbourhood in Palermo and sat on the first Sicilian Mafia Commission, the coordinating body of Cosa Nostra in Sicily.