Thinking about this using their meta (admittedly it's been awhile since we've all played):
AV does not seem to be acting according to his TP meta. I don't remember him being so aggressive about his suspicions. He's not really trying to gamesolve other than this.
112 is more engaged than she has been in recent games, as I recall it. She's always active, but she's making bigger, more targeted posts, less spam, that sort of thing. Is that a good thing, or a sign of a particularly vested interest in this game, i.e. a role?
I'm more inclined to accept 112's claim based on this - AV hasn't played like a TP so far.