Sisters Heather Martin (L) and Ashley Egeland, both survivors of the Columbine high school shooting, rest in their hotel room after they attended a conference about wellness and recovery in Charleston, South Carolina, U.S., December 7, 2018. Egeland struggled for years with severe addiction after she survived the shooting. Now she works in addiction treatment and recovery. REUTERS/Leah Millis SEARCH "COLUMBINE SURVIVOR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. THE IMAGES SHOULD ONLY BE USED TOGETHER WITH THE STORY - NO STAND-ALONE USES.