Time to claim: And I'm almost positive I know who is mafia.
I'm Fircoal (roleblocker). I talk so much to people at night I distract them and cause them to miss their night action apparently, according to my PM (a nice touch Iliad

). When Nag claimed Fircoal, I wanted to say something, but by the time I checked back, people had already dismissed the claim, so I felt no need.
Anyway, I blocked Neutrino night 1, as I was quite suspicious of him (he started a serious bandwagon on Jake, disappear for a long time, and then came back to start another bandwagon on Jake, who turned out to be a cop). Of course, someone still died that night. Night 2, I really thought Nag might be mafia, and if he was, I wanted to stop him from killing anyone. Once again, no such luck. Night 3 I blocked TWO, idly, because no one else seemed to jump out as particularly suspicious. Someone died. Last night I blocked Skittles. Still, someone died.
Now, if Firth is a (practically) confirmed cop, and he said Kwan is town, that leaves Kalishnikov as the only one I didn't roleblock, and leads me to believe he has been the one sending in night actions for the mafia (at least recently).
Therefore,
Vote Kalishnikov.