On May 5, 1971, Scaglione was killed with his driver Antonino Lo Russo, when he returned from his daily visit to the tomb of his wife at the Cappuccini cemetery in Palermo.
In January 1991, the suspects Gaetano Fidanzati, Pietro D’Accardio, Gerlando Alberti and his son, Francesco Russo, Salvatore Riina, Luciano Leggio and Giuseppe Calò were not brought before the court by the prosecution for lack of sufficient proof.
[1] During his long career in the judiciary Scaglione was involved in some of the unsolved political mysteries that tainted post-war Italy.
He was the last one to have interrogated Gaspare Pisciotta, the right-hand man of the Sicilian bandit Salvatore Giuliano, held responsible for the Portella della Ginestra massacre on May Day 1947 to impede the advance of communist and peasant movement.
Another pentito, Antonino Calderone, suggested that Scaglione's assassination was the Mafia's way of asserting its return to potency after the Catanzaro trial, during which it had been quiet.