On the second para yes I do think he's also been radicalized post 2010 but this is based on the new BK statements in the WSU bundle.
For me, he just doesn't seem to be the same person he was on the TapaTalks. ( More resentful, bitter and angry. )
We know he'd spent the intervening ten years living a fairly solitary but very online life. I'd happily put a wager on FBI having found he'd previously been a member of gamer chats and Incel forums. (R/eddit's dedicated forums were only banned in the late 2010s.) In the WSU docs he references ideas which were also prevalent there - eugenics/ who doesn't deserve to procreate, misanthropy, a Professor is unable to grade me accurately because she's foreign etc etc. (BTW I don't think we'll ever see the full FBI digital investigation, just as the Cellebrite couple recently explained so this hunch can't be proved )
Anyway, load the impact of thos forums on top of all of his pre-existing difficulties and challenges from childhood and teens -including something like ASPD as you suggest - and increasingly a double-life centered on specific p/orn & compulsions for hard-core violence & SK material. A catastrophic mix.
The WSU dump, plus the Cellebrite stuff explains so much. Prior to these and for so long he was viewed as an enigma, as unfathomable. Now I do feel many of the ' But why did he do it?' type questions have now been resolved, for me.
Anyway have a listen to this Levy show if you get chance, see what you make of it. Levy covers a handful of WSU documents we've already discussed on WS but she adds extra commentary
the very calculating Mr Kohberger
18mins. Perhaps BK was considering a kind of counter-attack - wrt another male member of staff - in the event that BK was disciplined for sexual harassment. (Kinda blackmail on WSU CJ Dept)
ETA - not a literal, physical attack
At 28 minutes
Angenette Levy picks up on something this WSU student noticed. After the 1122 murders, when everybody is discussing them he doesn't participate but once the students start linking them to Bundy's Chi Omega murders, she speculates that he feels more comfortable and wants to get off on talking about those with her instead
and at 36mins Levy speculates on his questioning a WSU grad he likes- where do you live and what kind of ( guard) dog do you have?
He also told this woman ' whoever did the murders must have been pretty good' and discussed why the timing was right
People in the office thought he ' might be a possible future rapist' and discuss whether he might be an incel
Included is a clip of Ann Taylor speaking in a pre-trial hearing about the hundred hours of WSU interviews and the ' unkind things' that WSU said about him, ' mean' comments' . She attempted to mischaracterize the WSU testimony as ableist & autism-related. Prosecutor interjected, we're not using them at penalty phase anyway
because we have evidence which is far more aggravating.