Not reading loki's spoiler yet because she probably knows from role claims. My guess is that it's either Bojack, malus, or Nat. Bojack has not really made any impression so far. Was first vote on HP yesterday but could be an early bus vote, didn't move to Blarg until after the doc claim. Malus seems to be fading in the background as the game goes along. Not a good voting record either, missed votes and only voting for Blarg after LP's claim. With Nat I just didn't like his arguments for not going after Royal, trying to stall?
I think town would test the miller claim eventually and can see Bojack get some heat after HP goes. With the way malus is fading I don't see him coming up as a priority town target....shit it's malus isn't it? Town malus would be much more of a presence, maybe not in more posts (although he's generally never this low) but definitely in content. Cheating a bit here with Fanto relaying the scum said at the start of D4 that they were going to let town be town and not get involved so that fits with him too. If it his him I don't see them getting him until we get towards the end.