Giuseppe "Pino" Greco 58 to 80 murders and possibly as many as 300.
He rarely worked alone, instead leading a "death squad" that included Mario Prestifilippo, Filippo Marchese, Vincenzo Puccio, Gianbattista Pullarà, Giuseppe Lucchese, Raffaele Ganci, Giuseppe Giacomo Gambino and Nino Madonia.