Most of the high profile murderers in the news over the past 15 years or so were taking harmful drugs before being diagnosed as being mentally ill. There was a time when mentally ill people committed fewer violent crimes per capital than sane people, but that was when most of them hadn’t been abusing drugs or taking wrongfully prescribed drugs first. It was commonly known in general/introductory psych. classes through the 1980s.
Well they were locked up in the asylums.
That kept the damage down.
If you think shutting down the asylums is working swell n.b. they want to shut down the prisons