Why better mental-health care won’t stop mass shootings As Northeastern University criminologist James Alan Fox has written, in a database of indiscriminate mass shootings—defined as those with four or more victims—compiled by the Stanford Geospatial Center, just 15 percent of the assailants had a psychotic disorder, and 11 percent had paranoid schizophrenia. (Other studies have come to a higher estimate, suggesting about 23 […]