Missing Person · Unknown
40 years waiting · since 1986
Missing Person: Marc James Allen
Justice is overdue — the trail went cold in 1986, but the truth hasn't.
NamUs case MP5790. Missing person: Marc James Allen. Last known contact: 1986-03-29 in Des Moines, Polk, IA. Circumstances: Marc was last seen leaving his home is Des Moines, Iowa, on March 29, 1986. He was on his way to a friend's home, but never arrived. The last time he was seen, Marc was wearing a light blue t-shirt, blue jean shorts, white socks, and gray tennis shoes. Demographics: 13 years, Male, White / Caucasian. Physical description: 5 ft 0 in, 85 lbs, hair: Brown, eyes: Blue. Clothing and accessories: Clothing: Marc was last seen wearing a blue t-shirt and blue jean shorts.; Footwear: He was wearing white socks and gray tennis shoes with velcro tabs.. Investigating agency: Des Moines Police Department | 8612999.
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Case Information
Incident:March 29, 1986
Last Updated:July 9, 2026
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Phone: 5152834864
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Case Information
Incident:March 29, 1986
Last Updated:July 9, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5152834864
You can remain anonymous