>School shootings in 2024 dipped slightly from the year before, but the 330 school shootings recorded last year still mark the second-highest number since 1966
https://www.k12dive.com/news/school-shootings-2024-near-reco...
https://www.k12dive.com/news/school-shootings-2024-near-reco...
https://www.abc.net.au/news/2024-12-17/us-school-shootings-2...
As you can see your number of 13 makes no sense, there were 200-300 students shot (!)