The Violi's are not involved in this but do know most like is. Mirarchi has been gaining power since after Covid hit, so he is a prime suspect. However, not all Scoppa's guys went over to the Rizzuto, even some went over to Mirarchi, which has helped Mirarchi gain a foothold in a couple of businesses. Those who did not join one of the factions, have maintained connections with Calabria in the Narcotics trade, hence why some suspects that Hamilton or Toronto is involved. A lot of people underestimate Sollecito, he is no pushover like Leo is, and has gotten his hands dirty in the streets. Leo is someone who had a silver spoon in his mouth since he was born, taking Leo out means weakening or crippling the Rizzutos legal powers that they have obtained. The big theory is it could just be Sollecito tired of sharing power and losing the respect of his men when Leo made some bad choices in the family. Now hear is another theory, what if the war we have been hearing about for so long and nothing happening with Mancuso was actually his attempt to take back Montreal for the Bonannos?