Colorado parent worried about a "repeat of Columbine" before shooting at STEM School Highlands Ranch CBS NewsColorado students walk out as school shooting vigil turns political Yahoo NewsGuard at school shooting may have shot at deputies and wounded student: Source ABC News‘Our Teachers Told Us To Run’: Restaurant Provided Shelter For Students After Shooting CBS DenverSchool Shooting Survivors Walk Out As Vigil Organizers Politicize Their Grief Blue Lives MatterView full coverage on Google News