I think that Chanel #5 is the bathtub baby girl but also enlisted Pete to work with her, Boone and Gigi to help eliminate herself as a suspect. I think that Chanel #5 propositioned Pete who accepted because he hated Chanel due to her getting a restraining order against him. I think that Pete is the Red Devil who attacks the Chanels in the mall in Black Friday. I also think that Pete is the person who killed Coney because he is the only person with motive, Pete was the previous school mascot so he killed his replacement. Although maybe Pete isn't working with #5 and previously Boone and Gigi and he just used the serial murders as an opportunity to murder some people that he wanted dead such as Coney. It's just a theory what are your guys thoughts?