Restricting gun rights for people with mental illness is the one gun-control initiative that Republicans feel free to support. In the aftermath of the epic failure of substantive gun-control legislation, they “overwhelmingly” voted for mental-health efforts that “could help prevent killers like Adam Lanza, the gunman in the Newtown, Conn., massacre, from slipping through the cracks.” Similar linkages appear in National Rifle Association head Wayne LaPierre’s calls for a “national registry” of persons with mental illness, and in conservative commentator Ann Coulter’s provocative claims that “guns don’t kill people–the mentally ill do.”
Of course, links between guns and mental illness arise in the aftermath of many American mass shootings, in no small part because of the mental-health histories of the assailants. Now, however, a number of states have begun to mandate that mental health professionals report persons they believe to be potentially violent to the police. For instance, New York passed a bill that requires mental-health professionals to report “dangerous patients” to local officials, who would then be authorized to confiscate any firearms that these patients might own. And a senate bill in Tennessee obligates mental health professionals—but not other types of caregivers—to report to local law enforcement any patients who make “credible threats.”
I was a guest on the April 7 edition of Melissa Harris-Perry, where the discussion explored whether psychiatrists should breach doctor-patient confidentiality and report potentially violent patients to the police–like the one treating Aurora shooting suspect James Holmes did–and whether serious mental illness should preclude a person from owning guns.
As a psychiatrist, I feel deep unease about these questions. Persons with violent tendencies should not have access to weapons that could be used to harm themselves or others. At the same time, the notion that “mental illness” becomes the only publically permissible way for politicians to support gun control is highly problematic. Psychiatric diagnosis is not a predictive tool. And indeed, the types of information garnered in background checks is far-and-away more relevant for predicting gun crime than is a person’s psychiatric history—making the recent legislative setbacks all the more troubling.
In our research, my colleague Ken MacLeash and I find that three misperceptions underlie legislative assumptions about guns and mental illness.
The first is that mental illness causes gun violence. In fact, surprisingly little evidence suggests that persons with mental illness are more likely than anyone else to commit gun crimes. Databases that track U.S. gun homicides find that 3% to 5% of American crimes involve “mentally ill shooters.”
Research also shows that stereotypes of violent madmen represent an inversion of reality. Many mental illnesses actually reduce a person’s risk of violence, since these illnesses often produce social withdrawal. And individuals with severe mental illness are far more likely to be assaulted by others than to commit violent crimes themselves. One study in Los Angeles found that, far from posing threats to others, people diagnosed with schizophrenia had victimization rates 65 to 130% higher than those of the general public. Another recent study found that people with mental illness are significantly more likely than the general population to be shot by the police.
As such, associations between gun violence and mental illness represent an oversimplification or a distortion. And reflexively blaming people who have mental disorders for violent crimes overlooks the threats posed to U.S. society by a much larger population—the sane.
Second, psychiatric diagnosis can’t predict gun crime before it happens. Actually, it’s far from predictive in matters of violence. Psychiatrists using clinical judgment are not much better than chance at predicting which individual patients will commit gun crimes. This lack of prognostic specificity is a matter of simple math: mental health professionals see many patients who threaten violence, yet most violent impulses are ultimately ignored or resisted by the persons who experience them.








