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Case Description
Any updates on this case?
Mark William Allen, a 31-year-old man, was last seen on December 6, 2015, in Livermore, California. Standing at 6'4" and weighing around 260 lbs, Mark had brown hair, blue eyes, and facial hair, which was likely ungroomed. He also had a distinctive scar at the base of his spine. On the day of his disappearance, he was reportedly wearing cargo pants and a sweatshirt. Mark is known to have struggled with mental health issues and often wandered the streets at night. He had a history of disappearing ...Read More
Last Seen: Dec 06, 2015
Last Seen: Dec 06, 2015
Links to Additional Sources (7)
See any mistakes?Victim Details
Nov 16, 2016
Oct 12, 2021
Mark
Allen
39
31
76 inches
260 lbs
White / Caucasian
Male
Dec 06, 2015
Livermore
California
Alameda County
236
25414
Livermore Police Department
Livermore
California
Alameda County
94550
1110 South Livermore Ave, California
9253714900
Local
Law Enforcement
15007622
Livermore Police Department
Brown
Blue
Blue
12/01/2025
Area Last Seen:


