The article at Reason reports:
The problem here is that three very differently defined terms are being used somewhat incautiously and interchangeably: school shooting, mass shooting, and mass school shooting. Uvalde was a mass school shooting; the 26 previous tragedies at schools this year were not.
…The difference is significant. Education Week, which tracks all school shootings, defines them as incidents in which a person other than the suspect suffers a bullet wound on school property. Many of the 26 previous shootings involved disputes between students in parking lots, or after athletic events, and all of them resulted in one or zero deaths. These deaths are still incredibly tragic, of course. But they are fundamentally unlike what happened in Uvalde.
Uvalde is a mass school shooting. This is defined in different ways too: an incident in which at least four people (some counters make it three) are shot and/or killed. The Gun Violence Archive counts incidents in which at least four people were shot. Under this definition, many incidents of street crime and domestic violence count as mass shootings, even if no deaths result. A stricter tally of mass school shootings, conducted by criminologists for Scientific American, only includes incidents where the shootings resulted in at least four deaths. Using their criteria, the number of mass school shootings in the U.S. since the year 1966 is 13. These crimes claimed the lives of 146 people in total.
Obviously, 13 incidents in the last 56 years is a very different statistic than 27 incidents in the last few months. The two figures are so far apart because they measure separate things. One-off gun incidents are a serious problem in the U.S., and those taking place at schools are no exception. Mass casualty events, on the other hand, constitute less than 1 percent of all gun deaths. Suicides and non–mass-casualty murders—usually carried out with handguns rather than assault rifles—constitute the overwhelming majority of gun crimes.
I can’t help but wonder if NPR is purposely misleading Americans. What happened in Uvalde is horrific, but it is sad that many political operatives are using the events there to further an agenda that will take away the rights of innocent Americans.