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Case Description    (SOLVED)
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On December 1, 1999, 40-year-old William Cothburn O'Brien was last seen in San Diego, California. Standing at 5 feet 4 inches tall and weighing approximately 150 pounds, O'Brien had brown hair and hazel eyes. The circumstances surrounding his disappearance remain unclear, with limited details available.

At the time of his disappearance, O'Brien was reported missing to the San Diego Police Department. The case was assigned to Detective Anna Glazewski of the Missing Persons Unit. Despite ...Read More
Last Seen: Dec 01, 1999
Links to Additional Sources (1)
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Victim Details

Feb 15, 2023

Jan 12, 2024

William

OBrien

65

40

64 inches

150 lbs

White / Caucasian

Male

Dec 01, 1999

San Diego

California

San Diego County

92109

No

296

123233

San Diego Police Department

San Diego

California

San Diego County

92101

Anna Glazewski

Detective- Missing Persons

1401 Broadway, California

6195312000

Local

Law Enforcement

23-500216

2023-02-14

San Diego Police Department

Brown

Hazel

Hazel

Yes

12/04/2025


Area Last Seen: