I don't see how Aditya can be definitely clear considering it was Spoobir who killed MaD, and not the mafia.
Probably the remaining mafia has the poisoning ability, as well as the kill, of which he can use only one.
I'm really suspicious of Tom after his post, because he's clearly trying the same thing Chewie did, saying it is surprising that Abhas is alive. With the doctor alive, it is a punt for the mafia to go for expected targets.
I see it as a mafia tactic to keep us alive because as long as we are confused (like we are now), it is a great opportunity for them, because we might be targeting the wrong people.
That said, I believe Tom is the last one..
Lynch: Highlander999
Regarding his attempted diversion of suspicion towards Aditya, If he was indeed investigated by the cop, being a miller, he's obviously going to get mafia aligned..