Mass shootings in the United States
In a study, experts said that roughly one-third of acts of mass shootings since the 1990s were committed by people with a "serious mental illness". However, the study also said that people with a serious mental illness are responsible for less than 4% of all the violent acts in the United States. The American Psychiatric Association (APA) said that gun violence is a public health crisis and that a majority of people with mental illness are not violent and "are far more likely to be victims of violent crime."