Well, nobody's said anything about this, but I think that some of the villagers turned into these other roles due to the thing where they had to pm klippy numbers. Also, the quickness of arsonist's death makes me fell that we just killed an innocent villager.
I'm gonna have to say that, as much as that makes sense from a numbers perspective, that's pretty unlikely.
To support this, I point to Spectrum. Spectrum got attacked twice yesterday for a grand total of 12 damage, once by Arsonist, and once by (a rather tipsy) Zeffy. Now, you could make the argument that Zeffy did 10 damage (which, judging from the spread, is pretty unlikely in itself) and that Arsonist did 2, or Spectrum took mysteriously took damage from something else in the same way that Candy did, but consider what Arsonist said just before his attack:
We can be death bros then!
Though I personally call the sanity of Arsonist's character into question, and he was pretty heated at the time, this does suggest that he can do at least enough damage that Spectrum wouldn't just yawn it off. Despite Zeffy having been drunk/tipsy/buzzed yesterday, he attacked specifically for the sake of spreading damage, not with the intent to kill. Were they coordinating? Less than likely; it seems more as if Zeffy just attacked him because someone else on the same page did and that was an opportunity to spread.
Unlikely isn't impossible, of course, and this is all speculation based on inference (though I do feel that the amount of damage Spec took is pretty telling). But if anyone'd know if he was a Villager or not...it'd probably be Zeffy.