[lisarea]

There have been studies showing that people with certain types of schizophrenia (although note that the shooter has not been diagnosed with schizophrenia) can be somewhat prone to violence. Some subset. Certain types. Under certain conditions and circumstances.

So what's the cutoff to treat a demographic as a default criminal, and pre-identify them according to profile? Is there some hard number? Are certain types of violence more acceptable than others? Are certain classes more suitable to profile than others? If it's OK to profile people according to mental illness, is it also OK to profile them by race, religion, sex, IQ, income, or any other characteristic that might be associated with a higher chance of violent behavior?