I didn't see any votes for Master anywhere, and since he voted in Heroist, and the evidence looks rather... fabricated, then
Nikolego:NNV
I hope I wrote that correctly.
Added 7 minutes later
My intuition tells me that Drakkosha and Uran are also Mafia. + someone from the newbies + someone from the silent players + Heroist. Just in case, if they kill someone at night. We'll see...
Heroist is not doing well, that's true. Maybe he's not doing well because of those silent players? If the Mafia really haven't shown themselves in the thread, and they're planning a final attack?