 The Grecos suspected the La Barberas of the attack.However, it had been Cavataio who had killed Di Pisa in the knowledge that the Grecos would blame the La Barberas and a war would be the result.Cavataio – having his own problems with Di Pisa and wanting him out of the way, and on bad terms with the La Barberas as well – contrived Di Pisa's murder in such a way that the La Barberas would appear responsible.