I don’t go along with this psychobabble - he was, is, and will be evil ...
The left does not believe in evil. (Conservatism excepted).
Evil walks the Earth in many forms. Evil will never be defeated until we look it in the eye, call it for what it is and then destroy it.
He is not nearly as evil as a felonious scawflaw who recklessly fails to purchase Pelosicare.
This psychiatrist is ‘loosy goosy’. Psychology is ‘loosy goosy’. I speak as one who is just short of a major in psychology. As far as this shooter is concerned, his motivation doesn’t matter, just his actions.