Anonymous complaint alleged issues at STEM School months before deadly shooting. Officials say it was uncorroborated. - The Colorado Sun
- Anonymous complaint alleged issues at STEM School months before deadly shooting. Officials say it was uncorroborated. The Colorado Sun
- Colorado parent worried about a "repeat of Columbine" before shooting at STEM School Highlands Ranch CBS News
- Colorado students walk out as school shooting vigil turns political Yahoo News
- Source: Security Guard Shot Toward Deputy In Highlands Ranch School Shooting CBS Denver
- Suspects in Colorado school shooting make first court appearances KTVZ
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