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Case Description

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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 di ...
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Last Seen: Dec 06, 2015

Links to Additional Sources (6)

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  • 5078DMCA - Mark William Allen - Doe Network
  • Mark William Allen | State of California - Department of Justice
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