Geographic location of the bug: Thornton Colorado 80241
Time: 02:26 PM EDT
Your letter to the bugman: Found a lot of these guys running around a school. Followed by a lot a questions about what it is.
How you want your letter signed: Thank you for your help!
This is definitely not a Desert Stink Beetle in the genus Eleodes. It is a beneficial, predatory Ground Beetle in the family Carabidae. Here is a similar looking individual pictured, but not identified, on BugGuide.