Top suspects for me:
Boydster - Did suspect him on the first day, now I'm not sure what to think. Neither of the decisions he pushed for have ended up well for us. Sure, he convinced me and others, but he was if I recall the first to talk peace and one of the first to lynch BHS.
Pez - Got to go back to day one. The main thing that made people look away from him was suspecting BHS, now that's gone he still seems likely, if not more so.
Wesker - Maniacal laugh, gets suspected, then vanishes. All in all pretty suspicious.
Lower down suspects:
SCG - Like Roundy says, coming out of nowhere to vote was weird, but equally there are several quieter users and it wasn't as though BHS needed any more votes to be lynched, even back then. Still, something's off.
DuckDodgers - Is being smart, but is also potentially trying too hard to be smart. Could easily be a penguin trying to be above suspicion. Alternatively I am overthinking this and he genuinely is above suspicion.
Probably human:
Roundy, jroa, Shifter.