Desmond Holly, 16, who is suspected of shooting and critically injuring two students, had been “radicalized by an extremist network,” the authorities said.

A 16-year-old student who opened fire at Evergreen High School in Colorado, wounding two classmates before turning the gun on

The Colorado high school shooting suspect, who was identified as a 16-year-old student, was believed to be "radicalized by some extremist network,” officials said.

A teen shooter who wounded two fellow students when he opened fire at a Colorado high school Wednesday was only 16 years old — and “radicalized by an extremist network,” authorities