How strong is the link between mental illness and mass shootings?
Benedict Carey reports: People who blame mass shootings on “the mentally ill” are usually reasoning backward from the act itself: the person just shot 20 unarmed strangers, so he must be “crazy.” In fact, scientists find that only a small fraction of people with persistent mental distress are more likely than average to commit violent acts: patients with paranoid schizophrenia, which is characterized by delusional thinking and often so-called command hallucinations — frightening voices identifying threats where none exist. People…