Suicides accounted for 638 of the 910 gun deaths in Arizona in 2012, according to the Arizona Department of Health Services. Homicides came in a distant second at 246.
That same year, a total of 747 people died of motor-vehicle-related injuries.
Gun deaths have exceeded the number of motor-vehicle deaths in Arizona every year since 2009.
Firearm deaths by suicide have far exceeded gun homicides each year for the past decade.
This blows a big hole in the argument that gun ownership keeps people safer.