Scream Queens theories

Theory #1

My first theory is about Chanel #2. I think she's the red devil. I mean it all sums up, well most of it. The second bathtub baby, the girl, could have been her. She kinda looks like Boone in some ways, and her death was kinda weird. She was texting the red devil, it could have all been staged cause of the cameras Chanel had hidden everywhere, that's kinda fake if you ask me. I watched a  Clevver Tv video where they found some pictures of Ariana on set of scream queens with sweat pants and a normal top, not something the Chanels would wear, with blood rubbed along her face, mostly cheeks. But on scream queens when she died she was wearing a silver top-like thing and a white skirt with high boots, and the blood was squirted in a staged matter on her forehead. And I mean she was the one that said "I love a creepy collage" after finding the Red Devil's shrine like collage thing. Also I checked the two last episodes of season 1 and both of them had Ariana Grande as a guest star. The picture of the cast is up there. But I also noticed everyone that's dead is there two so idk. So what do you guys think?? Could she be the killer?? I think so.