 Suspicion fell on Calcedonio Di Pisa, who had collected the heroin for Manzella from the Corsican supplier, Pascal Molinelli, and had organised the transport to Manzella’s partners in New York.The case was brought before the Mafia Commission, but disagreement on how to handle it led to a bloody conflict, known as the First Mafia War, between the Grecos, headed by Salvatore "Ciaschiteddu" Greco, and the La Barberas – in particular when Di Pisa was killed on December 26, 1962.Manzella sided with the Grecos and became the target of the rival faction.