http://crimeresearch.org/wp-content/uploads/2014/10/CPRC-Mass-Shooting-Analysis-Bloomberg2.pdf
IV. Gun-Free ZonesAre areas where civilians cannot carry guns for protection more likely to attract criminals?
The Everytown report claims that 86% of mass shootings occur in places where guns are allowed. But their high figure is primarily driven by their inclusion of attacks in private homes.10 Everytown also makes numerous errors in identifying whether citizens can defend themselves.
Thus, they ignore rules that prevent general citizens from carrying guns (e.g., not acknowledging that Los Angeles County issued only 240 concealed handgun permits to very wealthy donors out of an adult population of 7.6 million adults). They ignore that allowing police to carry guns is not the same thing as letting civilians defend themselves. They fail to separate out gang-related attacks (see Appendix for a complete list of their errors). They also mistakenly rely on news reports to determine whether guns were banned in an area. Unfortunately, the media virtually never mentions that attacks occur in gun-free zones.
But the issue over gun-free zones has always focused on non-gang attacks in public places. Gang fights over valuable drug turf or criminals committing robberies are entirely different from incidents where killers engage in mass public shootings to obtain publicity. Mass public shooters intend to commit suicide, but they also want attention. They realize that the more people killed, the more attention they generate
.Since 2009, only 8 percent of mass public shootings have occurred in places where civilians are allowed to defend themselves. Since the only attacks in places that have allowed civilians to carry concealed handguns have occurred over the period of time that Everytown covered since January 2009, the true probability is less than that.
The summer of 2014 clearly illustrated how mass public shooters pay attention to whether people with guns will be present to defend themselves. Elliot Rodger, who shot to death three people in Santa Barbara, explained why he picked his target. His 141-page "manifesto" shows how he worried someone with a gun would stop him before he was able to kill enough people. He wrote: "Another option was Deltopia, a day in which many young people pour in from all 10 In these residential attacks by family members, the attacker may likely know whether a gun is