Hearing voices can be a good thing if they are instructing you to ‘finish your homework,’ ‘help mom carry the groceries,’ or ‘help find the neighbor’s cat.’
It’s hard to believe he was hearing voices with all the elaborate pre-meditation and his clever escape for the first hour after the rampage.
Do all psychopaths hear voices?
https://patents.google.com/patent/US4877027
THAT would be psychopathic.