Over the years, having read various articles/ books on this Montreal feud, there seems to be a pattern with rival Montreal crime members whom are plotting Rizzuto's demise. Many of them seem to gravitate to Toronto. I don't believe in coincidences, but these frequent visits are further evidence that Calabrian criminal entities/clans from Toronto are possibly involved; as speculated by media reports.
I do believe from a strategic perspective the 'ndrangheta has an interest in Montreal it doesn't mean they order hits there but there are alliances and they probably back the strongest.
