Local news in Pennsylvania is reporting that it looks like the shooter had a lot going on aside from political positions.
Classmate describes him as "a loner" who was "relentlessly bullied" and "wore hunting outfits to school."
Not quite sure what a hunting outfit is, but I'm "pressing X to Doubt" hard on any folks pushing the narrative that this is somehow our fault for pointing out Downmarket Mussolini is in fact a fascist, and the political program he's selling is in fact fascism.