Police say ‘extremist network’ may have influenced Colorado high school shooter

The gunman behind this week’s school shooting in Colorado was “radicalized by an extremist network,” authorities in Jefferson County said Thursday.

The statement from the Jefferson County Sheriff’s Office didn’t get into details about how a white 16-year-old named Desmond Holly was radicalized before he shot and wounded two students at Evergreen High School and then later died of a self-inflicted gunshot wound.

But local media outlets have looked over social media accounts that appear to be Holly’s that suggest he showed interest in Nazism, holocaust denial, white supremacy and previous school shootings, including the 1999 massacre in nearby Columbine.