“He was radicalized by some extremist network,” a spokeswoman for the Sheriff’s Office, Jacki Kelley, told reporters at a news briefing outside the school in Evergreen, Colo., a mountain town about 3...

A 16-year-old boy who had been radicalized by an “extremist network” fired a revolver multiple times during an attack at a suburban Denver high school that wounded two students, authorities said Thur...

The suspect, a student at the school, died from self-inflicted injuries, officials said.