For what it's worth, there are also one or more articles published at the time of Verduci's death stating that he had ties with or had sided with Salvatore Montagna.
With all these theories and sometimes contradicting statements it's hard to believe what is true and what isn't.
That's the trouble I have with this Montreal war. I'm reading Business or Blood at the moment and it's all hypothesis and assumptions. As long as no major guys on both sides flip, we will never know the real story..