No, because IceGuy, even if scum, is definitely not the ONLY scum.
That being said, IceGuy is actually very smart and has an extremely good theoretical mind. I know for a fact he is not ACTUALLY dumb. However, any scum - especially uninvested scum, like IceGuy would necessarily be - can make a bad play and be stuck with it.
Also bolstering my IceGuy suspicion is KNOWING that he has a really good mind for theory and gamebreaking and that he STILL thinks his "everyone investigate the same person" thing is a good idea.
I specifically did NOT mention it yesterday because I didn't want to clue scum in to my role - and then, I didn't want to give scum clues as to my target. Let them think I was investigating whatever stupid thing IceGuy wanted. That could only benefit me.
However, today, I can say how dumb that plan is and how sure I am that IceGuy would know it was dumb if he was town and not pushing dumb theories on purpose.