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Case Description
Any updates on this case?
Mark Addison, 22, went missing on September 4, 1982, from San Luis Obispo, California. Prior to his disappearance, Mark had purchased camping gear and mentioned to others that he planned to head into the mountains to live off the land. His vehicle was found abandoned in Bakersfield, California, a few days later, but no further clues about his whereabouts have emerged since then.
Mark was last seen wearing Levi's jeans, a blue/gray plaid shirt, and a green and white baseball jersey. He h ...Read More
Last Seen: Sep 04, 1982
Mark was last seen wearing Levi's jeans, a blue/gray plaid shirt, and a green and white baseball jersey. He h ...Read More
Last Seen: Sep 04, 1982
Links to Additional Sources (5)
See any mistakes?Victim Details
Apr 22, 2013
Sep 05, 2018
Mark
Addison
63
22
69 inches
160 lbs
170 lbs
White / Caucasian
Male
Sep 04, 1982
San Luis Obispo
California
San Luis Obispo County
200
13445
San Luis Obispo Police Department
San Luis Obispo
California
,
00-0713042
San Luis Obispo Police Department
Brown
Brown
Brown
11/23/2025
Area Last Seen:
Forum Posts (1)
Hey everyone,
I've been digging into Mark Addison's case and can't stop thinking about how weird ... ...Read More
01/14/2023
I've been digging into Mark Addison's case and can't stop thinking about how weird ... ...Read More
01/14/2023
