The devil made him do it?
Just kidding... kinda sorta... JMO.
Mitigating circumstances don't necessarily have to come into play, it's just that they can? If I'm reading things right.
I could be totally off base, but I wouldn't put it (or anything) past him in terms of inventiveness in having a Plan B -- excuses/mitigating circumstances if he got caught red handed and had no alibi and was charged with the DP and had to come up with something as to "why he did it", that is, if he ever admits to killing them, to avoid the DP and "only" serve LWOP if convicted.
Such as, speculating here, he was so angered by one or more of the women living in the house rejecting him online and/or in person, and "saw red" or "blacked out" when he went on a murderous spree he doesn't really recall what all he might have done or remember much.
Maybe he'll admit to stalking them, night prowling, lurking, etc., but not to premeditation?
Like he was just going there that night like the other dozen or so times to look in the windows at one or more of them, and next thing he knew, he was standing outside his car with a bloody knife in his hand.
So he's in some trance or fugue state or having an engram, looking down at and/or feeling the knife in his hand, and thinks he'd better go, so he disrobes and gets in his car and the rest I think we know.
In the Mollie Tibbetts murder case, her killer Cristhian Rivera claimed that he must have "blocked out his memory" before or during attacking her after jumping out of a car and disabling her with blunt force while she was running down a country road.
He told LE (at first anyway) when he "came to", he was sitting in the driver's seat of the car and looked down and saw her phone in his hand, and realized she was in the trunk of his car and was injured or dead, so he drove to a corn field and disposed of her body, and went home and waited to see if LE would find him, and they did. He was convicted and is serving LWOP.
That sort of scenario is what I think might be BK's Plan B. Not sure if it would be mitigating enough to avoid the DP, but it might be a sort of last gasp spaghetti defense if the SODDI/TODDI defense goes down the drain.
All MOO speculating and spitballing, if BK is guilty and it comes down to the wire and he feels/his defense feels he has to say something/anything, it might be something like that -- I was outside of myself and don't really remember, it wasn't the me that I know, anyway.
This possibility (the "other me" could have been the one who did it) was hinted at at the very beginning, IMO, when his PD in PA shortly after his arrest said this after speaking with BK (
B&UBM):
"Jason LaBar, the chief public defender of Monroe County, Pennsylvania, is representing Kohberger in the extradition but not the murder case. He called the charges "a little out of character."
"He said this is not him," LaBar told TODAY on Tuesday, Jan. 3. "He believes he's going to be exonerated. That's what he believes, those were his words.""
Public defender says Idaho murder suspect is ‘calm,’ believes he’ll be exonerated: ‘This is not him’
Well if BK's PD at the time of his arrest says he thought the charges are a little out of character for him, and this is not him, then that doesn't exclude that maybe it was his evil twin brother (the one that shares his psyche), IMO.
MOO