15 Suspects For the Killer on Scream Queens Season 2

Why he might be the killer:

• There's a strange moment in the premiere when Zayday touches Dr. Cassidy and he's freezing. He says he just runs cold, but now we know that he's literally dead. Whether or not he's a killer, though, is TBD.

Why he might not be the killer:

• We don't know too much about Dr. Cassidy, but he seems like kind of a dummy. He also seems more interested in dating Chanel #3 than killing people.