Their accounts paint the picture of someone with a vaguely libertarian bent who despised both major parties and politicians generally (including Trump) but who didn’t engage with politics beyond that. He preferred edgy humor, video games and the message board 4chan, all of which he became increasingly steeped in as he withdrew from social life as well as their own friendships several years ago, they said.
Reliable enough?
https://www.kenklippenstein.com/p/the-ice-shooters-motive