Paul Cherry has more details arising from today's law-enforcement operation dubbed "Project MAGOT and MASTIFF" ("opération MAGOT et MASTIFF" in French).

Leonardo Rizzuto seems to be identified as a co-leader of the Montreal Mafia. Mom Boucher and his daughter appear to have been in communication with Syndicates leader Gregory Woolley, a one-time bodyguard for Boucher, about the plot to kill Desjardins.

Link to Cherry's article:

Link to a chart published by the Sûreté du Québec (SQ):