Even though you don't think it's likely I think the second theory is what's happening. Marco Pizzi and Davide Barberio could have their own reasons for challenging Leonardo Rizzuto and Stefano Sollecito. And Why else would their businesses be targeted right after Leonardo Rizzuto was shot that would be a big coincidence if it turned out to be something separate.
Also, who was responsible for the attempted hit on Barberio when he was shot a while back? Was he siding with Del Balso?
