I'm sure he was killed in Sicily on orders from Desjardins and the Calabrian faction in retaliation for Di Maulo's murder for the continuous control of Montreal.
A side note on Di Maulo and Desjardins, they were ungrateful, turncoat little shits and got what they deserve.
Desjardins doesn't have the pull to order someone to be killed in Sicily, by Sicilians. Only Rizzuto has. The so called 'Calabrian' faction (which was actually composed of mostly mainland Italians from multiple regions) is now in shatters.
