GUN-RELATED homicides and gun ownership:

Mother Jones analysis includes gun suicides and makes no attempt to correct for even course-grain racial/ethnic confounds….

I downloaded the 2009-2013 data for gun-related homicides by race/ethnicity from the CDC’s WONDER database and compared it to the gun ownership rate data via wikipedia. . . .

Once you remove suicides and race/ethnicity from the equation the case gets much weaker.