Two recent school shootings are highlighting what extremism researchers see as a growing — and poorly understood — trend among young people who embrace mass violence.
Columbine was almost 26 years ago. So the only people who haven't had the experience of being in school during the risk of shootings are in their late 40s and older.
Enoch Brown school massacre: Four Lenape Native Americans entered the school and shot teacher Enoch Brown. Brown was then scalped, while ten students were beaten to death with clubs and also scalped. This marks the first instance of a school shooting in the Colonial States and in North America.