206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description (SOLVED)
Any updates on this case?
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
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)
See any mistakes?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:







