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Case Description
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Brian O’Shaughnessy, a 52-year-old man, was last seen in Adams County, Colorado on July 20, 2011. At the time of his disappearance, he was described as a white male, standing at 6'0" and weighing 195 pounds, with brown hair and brown eyes. Concerns were heightened as it was reported that O'Shaughnessy may have been suicidal at the time he went missing.

Few details regarding the specific circumstances of his disappearance have been made public. The official classification of his case w ...Read More
Last Seen: Jul 20, 2011
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Victim Details

Jan 24, 2026

Jan 24, 2026

Brian

O’shaughnessy

52

52

6'0 inches

195 lbs

White

Male

O'Shaughnessy was last seen in Adams County, Colorado on July 20, 2011. He has never been heard from again. Few details are available in his case.

Jul 20, 2011

Adams County

Colorado

Adams County

4

Adams County Sheriff's Office

01/25/2026