The Excel file with detailed information on mass public shootings is available here. With all the discussion about having another assault weapon ban, only 13% of mass public shootings are done with any type of rifle. Among the other findings, about 9 in 10 of the attacks are in gun-free zones, more than half the shooters are over age 30 and over 80 percent are at least 21 years of age. 96% are male and 58% are white. Still for many it might be surprising that such a large percentage of these attackers are minorities and that most are much other than K-12 or college age shooters. Earlier work that we had done showed that the vast majority of these killers have no religious or political views.