My theory hasn’t changed much. I think there was an immediacy to this crime. My guess is that the four victims were in a common area after coming home. I think the killer came by while they were all together. I think a nasty argument ensued.
It could have simply been generated by alcohol or maybe the killer arrived angry…maybe from something that occured at the bar or at the frat party…or maybe because of the break-up. Kaylee’s sister said she was a ’fighter’ ‘defender’ of those she cared about…so she might have even inserted herself into an argument that had nothing to do with her. I think the killer was told to leave or just stormed out, furious. If he left by the sliding door, maybe no one remembered to lock it again after this blow-up.
At this point, they all go to their respective rooms. Maybe Kaylee was staying in Maddie’s room if she already had moved out. Regardless, they were together and started repeatedly calling the ex. Maybe because they wanted to tell him what hsppened, maybe he knew ‘the visitor’, maybe they wanted advice, or if he was the one they argued with, to smooth it over because words went too far. In any event, the calls were not answered.
I think the Killer went back and got the knife and returned absolutely furious with those four. He had no isdues with the other two roommates. My guess…He took out Ethan first because he was the only one who could stop him. It may have been X in the hallway because she might have gotten out of bed and tried to getaway. But she did not get far.
Then he went upstairs.
This is all guesswork, and as I said…could be any number of individuals. But I think whatever motivated the killer came to a head that night.