The person at the center of this case
Douglas Mantei
Missing Person · Open
6 years waiting · since 2020
Missing Person: Douglas Mantei
Justice for Douglas Mantei — the trail went cold in 2020, but the truth hasn't.
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Key leads to think about
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person
Lead #1Why was Douglas Mantei at the Wailuku Police Station on October 2, 2020?
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clue
Lead #2What was his condition and demeanor when he left the police station?
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witness
Lead #3Did anyone see Douglas Mantei after he left the police station that day?
Douglas Mantei, a 44-year-old white male, was last seen on October 2, 2020, leaving the Wailuku Police Station in Maui, Hawaii. He may have been experiencing homelessness at the time of his disappearance. The circumstances surrounding his disappearance remain unclear, and his current whereabouts are unknown.
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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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location
Lead #4Where might someone experiencing homelessness in Wailuku seek shelter or resources?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP85832. Missing person: Douglas Mantei.
Last known contact: 2020-10-02 in Wailuku, Maui, HI. Circumstances: Douglas Mantei was last seen leaving the Wailuku Police Station on 10/02/2020.
He may be experiencing homelessness. Demographics: 44 years, Male, White / Caucasian.
Physical description: 6 ft 0 in, 190 lbs, hair: Brown, eyes: Blue. Investigating agency: Maui County Police Department and Coroner | 20-036661 | 2000-10-13.
Timeline of Events
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2020-10-02
Last Sighting
Douglas Mantei was last seen leaving the Wailuku Police Station on October 2, 2020.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:October 2, 2020
Last Updated:September 26, 2026
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Phone: 8082446400
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Case Information
Incident:October 2, 2020
Last Updated:September 26, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 8082446400
You can remain anonymous