Armed bystander fatally shoots suspected teen gunman after 3 children, 1 adult killed at Oregon school: feds

Three children and an adult were killed in a shooting at an Oregon elementary school Thursday, and the suspected gunman is also dead, shot by an armed good Samaritan.

The shooter was a 16-year-old Bend resident armed with a shotgun who was killed by an armed bystander with a concealed carry permit, federal law enforcement sources told Fox News.

The bystander "definitely prevented more deaths," one source said.

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