Devon Erickson, 18, accused of taking part in a deadly school shooting at the Science, Technology, Engineering and Math (STEM) School in Highlands Ranch, appears at the Douglas County Courthouse where he faces murder and attempted murder charges, in Castle Rock, Colorado, U.S., May 8, 2019. (Photo/Agencies)
Devon Erickson, 18, accused of taking part in a deadly school shooting at the Science, Technology, Engineering and Math (STEM) School in Highlands Ranch, appears at the Douglas County Courthouse where he faces murder and attempted murder charges, in Castle Rock, Colorado, U.S., May 8, 2019. (Photo/Agencies)
Devon Erickson, 18, accused of taking part in a deadly school shooting at the Science, Technology, Engineering and Math (STEM) School in Highlands Ranch, appears at the Douglas County Courthouse where he faces murder and attempted murder charges, in Castle Rock, Colorado, U.S., May 8, 2019.(Photo/Agencies)
Devon Erickson, 18, accused of taking part in a deadly school shooting at the Science, Technology, Engineering and Math (STEM) School in Highlands Ranch, is escorted from the Douglas County Courthouse, in Castle Rock, Colorado, U.S., May 8, 2019.(Photo/Agencies)
