I guess what gets me is that people who have known, documented psychological disorders, especially ones that can cause violent behavior, cannot be medicated unless they've shown a tendency to harm self or others. Most of them don't harm anyone if they're properly medicated, but when they go off their meds, the symptoms start showing up again.
Mental health care in the USA is an utter disaster. So many people don't take it seriously, so states cut funding and close long term care hospitals, where many of these people need to be so they can get the kind of care they need. Residential treatment or group homes aren't appropriate for every person. Sometimes they need long term care and all too often, it isn't available.