The person at the center of this case
Marc James Allen
Missing Person · Open
40 years waiting · since 1986
Missing Person: Marc James Allen
Justice for Marc James Allen — the trail went cold in 1986, but the truth hasn't.
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Key leads to think about
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witness
Lead #1Who was the friend Marc was visiting, and did they report whether Marc ever arrived or made contact that day?
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location
Lead #2What was the route Marc would have taken from his home to his friend's house, and were there any known hazards or suspicious activity along that path?
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evidence
Lead #3Have any clothing items or personal effects matching Marc's description been recovered in the Des Moines area since 1986?
Marc James Allen, a 13-year-old boy, disappeared on March 29, 1986, while traveling from his home in Des Moines, Iowa to a friend's house—a journey he never completed. Despite decades of investigation by the Des Moines Police Department, his whereabouts remain unknown and the circumstances of his disappearance unresolved. Anyone with information about Marc's disappearance or movements on that day is urged to contact authorities, as even small details could prove crucial to solving this long-standing case.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
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contact
Lead #4Were there any phone calls, messages, or other communications from Marc after he left home on March 29, 1986?
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clue
Lead #5Has anyone reported seeing a young boy matching Marc's description (5'0", 85 lbs, brown hair, blue eyes) in the Des Moines area in the days or weeks following his disappearance?
Have information about any of these leads?
Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
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.
Timeline of Events
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1986-03-29
Marc James Allen Missing
13-year-old Marc James Allen last seen leaving his home in Des Moines, Iowa, on his way to a friend's house. He was wearing a light blue t-shirt, blue jean shorts, white socks, and gray tennis shoes with velcro tabs.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:March 29, 1986
Last Updated:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5152834864
You can remain anonymous
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Case Information
Incident:March 29, 1986
Last Updated:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 5152834864
You can remain anonymous