If there is a common thread in a lot of these shootings it may be the frustration of a teenage/early 20s male with limited social skills who simply isn’t getting any, especially when you perceive that lots of other guys are.
I never contemplated going on a shooting spree, but when you’re that age it’s an unbelievably frustrating preoccupation.
We’re not talking disaffected, fat, pimply kid (like the Columbine loosers). This guy was 24 and a university student in OK. Somehow, I don’t see “not getting any” as being his motivation.
Yes, others-enforced celibacy seems to be a common feature of the psychos.