A 16-year-old gunman broke into Silver Rail Elementary School in Bend, Oregon, killing three children and a teacher before an armed bystander intervened.
https://www.foxnews.com/politics/democrats-call-gun-control-oregon-school-shooter-shotgun-purchased-mother
https://www.foxnews.com/politics/democrats-call-gun-control-oregon-school-shooter-shotgun-purchased-mother