Yes, but that leaves the arguement open to say as far as his resentment that he got stepped over (as seen in the boathouse scene), that he may of full and well known that it was a hit and openly accepted it knowing he would be the new boss, which he complained about being passed over for. It is only a theory of course, and while we don't know for certain that he knew or didn't know it was going to be a hit, he could have played it off like he didn't know, so that there was no evidence to get back to him.