How Are those three hits "wild conjecture" though? Research them, all signs point to the Cicero people.
You really think at this point in his life DiFronzo is going to risk everything by having a pill pusher bludgeoned to death.
You think after avoiding the drug trade, which they could have easily controlled completely, for 50 years he suddenly decides that he's going to turn his back on that policy so the doctor can kick up some cash from illegal pills to him every month?
Oh, then when they do decide to kill the guys, they make one disappear, then beat the other one to death.
