10/13/2025
NEW DETAILS: Jefferson County Sheriff's Office releases detailed timeline of Sept. 10 Evergreen High School shooting.
Key findings:
Deputies arrived 3 minutes after dispatch (correcting earlier timeline)
Shooter spent 3 minutes trying to re-enter building through locked doors
School staff initiated lockdown 42 seconds after first shot
FBI was investigating anonymous July tip but legal process was still underway
https://www.thegoldentranscript.com/news/9-minutes-new-details-on-evergreen-school-shooting/article_af84b4f1-e05b-47f2-a91e-092c5d8b0853.html
Support resources: Jefferson County Victim Services 303-271-5339 | Colorado Mental Health Line: 988
Jefferson County sheriff updates timeline of Evergreen High School shooting response, noting deputies arrived three minutes after dispatch. Surveillance video shows shooter's failed attempts to re-enter building during attack.