I think the latter is very unlikely, considering that this is a newbie, and proffesionals only do the latter.
Anyway, I don't know who to vote for? Maurice was the best at figuring out stuff, and Mafia didn't kill him, but rather, Dessew. I'm suspecting Maurice, because being the main smart guy, and then not getting killed after uncoding who is innocent makes me... feel suspicous of Maurice. Not enough to vote, just a weird gut feeling.