I think the killer could be Melanie Dorkus. the final episode'ds title is Dorkus. She was the previous president of kappa, the who who was killed by having acid sprayed on her body. Yes she was pronounced dead, but look at Boone. I've read a report where one of the cast members said that the killer is obvious and that the first episode gave the greatest hint to who the killer was. While watching I thought it could be Chanel because she said to Beans, "birth but no babies" that indicates that she knows something. But going onto Dorkus if she is not dead, her motive is great, revenge. During her scene she said "dancing with the devil" then Chanel #2 was killed after dancing with the devil. Yes when she fell she saw the devil in front of her but again look at Boone. IDK this is just my theory. I believe the remaining two killers are either Chanel, Melanie Dorkus, and/or Pete. Can's wait for next week!