Type 1 is a false positive that is demonstrated in comment #2. Type 2 is a false negative that is demonstrated by the subject case and is regretted by comment #1.

Perfection is beyond us, so we can not make policy on particular cases. The emergence of psychoactive drugs a few decades ago was simply wonderful. People doomed to lifetime confinement could have independence. There is a consensus that we as a society short changed these patients with respect to follow up care, especially to ensuring the use of the drugs that freed them.

In my opinion, activists have created too many type 1 errors. Families with sick children have great difficulty in getting care for their children. matt in comment 1 is correct; there are mentally ill people who are best treated in hospitals. Mr Chau’s (the school shooter) case comes to mind.