@Glennn,
Ok, I will take that as a 'you don't know, and you want me to research it for you'...I can get the stats but before I do that, I will tell you that the shootings are happening so often, I get confused.....I have a hard time even remembering about the massacre June 2018 that killed 5 journalists at the local Annapolis Newspaper (less than a quarter mile from my house, and locked down our neighborhood for about 6 hours)..Fortunately the shooter is claiming insanity because he didn't like the newspaper so he didn't kill students, just the parents of students......
And I'll try one more time, can you be more specific??? If you can't, it's alright because I have access to libraries, newspapers, google and the like....but if you need me to research for you, you will have to wait a day or so because I won't shoot from the hip about stats...