It was heavily implied that Ralph did set the fire that killed Pie-O-My, but never directly stated or admitted by Ralph. This leaves open the possibility that Ralph perhaps didnt do it, but it was, as he said, a lucky accident wherein he and Tony got a nice insurance settlement out of it.

So my question is, do you feel absolutely sure that Ralph set the fire? Or could you maybe see where he didnt and just got too emotional and angered Tony?