As much as I hate to mention social media again for fear of the ‘victim blaming’ brigade, one theory as to why the attack took place when it did was because Kaylee had actually moved out already (well, she’d been at her parent’s home as she was graduating and starting a job soon). She’d just bought a new car and had come back in her new car to spend the weekend with her friends and finish packing her stuff. That’s why she was sharing a room with Maddie - because her room was packed up. So one theory is that when BK saw on her social media that she had returned (when she posted the group photo with her roommates) he knew that this was basically his last chance. This is centred around the theory that Kaylee was his main target which, for some reason, I feel is probably accurate. Either Kaylee or Maddie or both.
I have the same feelings as a PP who said that he went for Kaylee and Maddie first and then basically came face to face with Xana who was unexpectedly up at that time, which I imagine he wasn’t expecting? This may also explain how Ethan was found in the bed while Xana was in the doorway - Xana got takeout food at 4AM (apparently the delivery driver has been interviewed and cleared after voluntarily contacting the police) and the food packaging was found in the kitchen, so maybe she ate in the kitchen? Or was up/walking around when he came in (using the bathroom/brushing teeth after eating, whatever). And she somehow disturbed him? I wonder if Ethan was asleep and that’s how he killed Ethan? I’m not sure exactly why he would have killed Ethan if he was sleeping - maybe Xana had left the bedroom door wide open when she went downstairs to eat and he saw Ethan sleeping and just went for the opportunity? And Xana returned to the bedroom and saw Ethan with his injuries - that would explain her crying and BK saying that he’s here to help (maybe to quiet her down making her think he’s going to help with Ethan’s injuries?).
This is the theory that made sense to me as I read the affidavit. I don’t know why I feel that Kaylee is most likely to be the target. Maybe because her father said that he felt she was, so I’ve been influenced by reading that? But it does seem to be the most common theory discussed online too (that she was the target, I mean).
BK was very clever to ask whether anyone else has been arrested because that’s also really thrown a lot of people. I didn’t know it was a tactic used by another serial killer though, so it does make sense that he just copied this. By saying this, he’s really fuelled the ‘Dylan was involved’ thing.
Poor Dylan and Bethany. They must be absolutely terrified. I can’t even sleep at night thinking about this. I always lock my door at night now (my bedroom door, that is) because it’s just so scary. I can’t even imagine how they must feel.