Well, since the votes are rolling out, and people can still change them later on, I guess it's time to

##vote: Shauna

The way she pointed at Nutty makes a lot of sense now that I consider the option that she might be the third girl in disguise. Since Scruffy and Nutty went out of their way to reveal that they're girls despite knowing that the killer was a girl, and Shauna followed after with a statement that she's Shadow, which cannot be proven in any way since he wasn't in the narrative, this seems like the soundest choice at the moment. I might still change my vote should someone convince me otherwise, but so far it really makes sense to me.