A 16-year-old boy has shot dead three schoolchildren and a teacher at an elementary school in Oregon, United States, before an armed bystander pursued and killed him inside the building. The shooting occurred on Thursday afternoon at Silver Rail Elementary School in Bend, leaving another child and a teacher critically injured, according to local police. Bend Police Chief Mike Krantz said the children killed at … Continue reading How 16-year-old killed teacher and 3 schoolchildren in US, shot dead by bystander