“He was radicalized by some extremist network, and the details of that will be down the road, and we wanted to give you that much about maybe a mindset for him,” Kelley said, per CBS News.

A “radicalized” 16-year-old student at Evergreen High School in Jefferson County, Colorado, critically injured two classmates as he continued to fire and reload his handgun Wednesday afternoon, police...

The students are being transported to a nearby hospital, the sheriff said.