Quick thoughts concerning the other characters:
89man - He really acts like a newbie. If that's genuine or whether he was told to do this by more experienced G collegue I don't know, and to me there's no way to know as of now.
Zacheryah - From what I can tell. he's his usual random self. His inactivity also isn't really any worse than in the last game, where he was a C as well. That doesn't say that he's innocent in anyway, but I would call it a bit too farfetched to accuse him as well.
Klin - Very aggressive, mostly towards Osman and Fred. Could be that it's part of a the Gs' tactic, could be that he's a C. If he's a gangster, he's playing well.
Enron - One of the more inactive ones who seem more suspicious to me, mostly due to his faux-pas concerning the fake fr3sh PM.
X - Don't know whether I should buy his reason for being absent yesterday, but I have nothing to disprove it as well. Don't really remember him saying much substantially since he came back, other than defending both of Osman & Fred (not quite sure about that though, gotta reread) without giving many arguments for it. Nothing more than a hunch, but part of a group of posters leaning towards more suspicious.
Maddy, Völler - So far the only ones from who I get the feeling that they're Cs. Doesn't mean much in Mafia obviously, but I think the jailor wasn't wrong with jailing Völler.
j0ker - Didn't notice anything tbh, but seeing as there seems to be a tangible movement against him I'll check out his posts.
Soren - Also part of the "more suspicious" group, mostly due to his erratic and insubstantial posting.
Again, I might have missed ot misunderstood a few things.