Wait... what exactly happened?
I'M GLAD YOU ASKED, ANTHONYCAKES.
Bruce Campbell attacked Hakoshen, who was still dead. One nerdy collector with a special role got converted by a nerdy zombie we don't know. Mettaur attacked Gullas, which caused him to die because a bodyguard dies rather than being converted. The vigilante attacked and killed Mettaur.
There are too many candidates for the plain zombie right now to accuse anyone with confidence if the only clue is "being a nerd," so we should focus on the person converted instead. I think it could be Niccea, who's using a Velma avatar and describes her mafia comic as a collection in her profile:
The Drunk Duck Mafia is a collection of the Mafia games that happen in the Games Forum.
Paramedics should now protect Same, because we need all the townie killing roles we can save and both bodyguards are dead now.