The attacker is mentally ill and requires treatment and / or confinement. He could be suffering from a brain tumor.
The evil that abounds is among those who've run the system into a such a financial hole that they don't keep these sick people confined anymore.
What WILL it take to open up mental hospitals again????
As I remember the ACLU was suing states on behalf of the mentally ill and forced the states to turn them loose
Don’t forget the pleasure seeking epicureans where anything goes, and give much behavioural latitude in the name of freedom. So, no one is “a loose crazy cannon” anymore. So no confinement....which eventually means lots of death.
An intracranial pumbumic implant would fix his problem.