Exactly the sort of thing I’d have expected.
A few earlier posts compared CV to Kohberger. Both were found to be insufferable and arrogant by some. Both ended up being killers. But intellectually, CV was on a different level. (Read BK’s writing and you’ll know what I mean.)
The true tragedies of this case were the deaths of three people, along with the injured and the traumatised students, family and friends.
There’s another tragedy, too: that a man as gifted as this should end up killing. So few people could do what CV could but his flaws overcame his remarkable strengths and caused so much suffering.
They might have had certain similar traits.
However, BK was going the way of typical hedonistic serial killers. Frustration, sadism, control. He'd continue this route in PA.
Valente, IMHO stands closer to "social justice warriors". He punishes "institutions" and "the society", although on this way, he kills people. He might have been protesting against the fact that society "rewarded the ones who did not deserve it". He probably was blaming own failures on "the society". Either he blamed in on any society but it was easier to organize revenge in the US, or he blamed it on the US specifically (where he thought he failed.)
Or, it could have been more direct revenge. Nuno seemed to have good social skills, and it implies, being nice to people, saying "yes" if you can and sometimes walking an extra mile to do something nice. So I can imagine that Nuno could tell Claudio, when they studied in Institut Technico in Portugal, "hey, I got a letter telling me about this postgraduate program at Brown, they have a place. I am going to stay with the lab here, but perhaps you are interested?" - and hand him the information.
Can you? It is always done among graduates and colleagues! "Such-and-such company is interviewing", or "there is a good internship offered to me, but I don't want to move to the other coast", or any such information. It is incredibly common in academia.
So i wonder if CV got the information about Brown from Nuno, who could say, look, it is an Ivy League school in the US! And then Claudio applied and got accepted, and moved to the US, having sold his condo, planning to stay forever, and totally failed.
(You always take yourself everywhere, that's the problem. He could be thinking that addressing a Brazilian man the way he did was "a joke", but i understand the reaction it caused in the Brown of 2001. And how many of such faux pas Claudio could have made? I suspect that he was actively disliked in Brown)
So he failed on his own, and it was a big failure in his mind, and got back home, but since he could not accept own fault, I can see him blaming it on others in his school.
And when Nuno moved to the US and achieved success, Claudio could have, in his twisted mind, created a story of Nuno "removing a more talented person, me, off his way". He might have even read about Nuno working in the MIT by accident, and then created an overvalued paranoid idea.
I think that it could have been his plan because he was so angry with Brown (where he failed) and angry with Nuno (who moved to the US and succeeded). And, we don't have any evidence of him being a serial killer or a predator. He doesn't come across as hedonistic. He is a paranoid, envious, revengeful man.
So, maybe someone with BK's traits, but not BK-type of a killer.