The person at the center of this case
Frederick J. Sigo
Missing Person · Open
39 years waiting · since 1986
Missing Person: Frederick J. Sigo
Justice for Frederick J. Sigo — the trail went cold in 1986, but the truth hasn't.
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Key leads to think about
👤
person
Lead #1Who was the unidentified white male seen with Frederick outside his father's house on November 26, 1986?
👁️
witness
Lead #2Did anyone witness Frederick leaving with this person or see them together after that day?
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clue
Lead #3What circumstances or events led to Frederick being outside his father's house that day?
Frederick J. Sigo, a 22-year-old American Indian male, disappeared on November 26, 1986, the day before Thanksgiving, from Port Orchard, Washington. He was last seen outside his father's house with an unidentified white male, and has not been located in nearly four decades. The circumstances of his disappearance and the identity of the person he was with remain unknown, making this a critical cold case that warrants renewed investigation and public awareness.
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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.
🎯
suspect
Lead #4Has the identity of the white male ever been established or investigated as a person of interest?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP55525. Missing person: Frederick J.
Sigo. Last known contact: 1986-11-26 in Port Orchard, Kitsap, WA.
Circumstances: Frederick has not been seen since the day before Thanksgiving 1986. He was last seen with a white male outside of his father's house.
Demographics: 22 years, Male, American Indian / Alaska Native. Physical description: 5 ft 5 in, 130 lbs, hair: Brown, eyes: Brown.
Investigating agency: Kitsap County Sheriff's Office | K86-014217 | 1986-12-13.
Timeline of Events
👁️
1986-11-26
Last Sighting
Frederick J. Sigo was last seen outside his father's house in Port Orchard with an unidentified white male, the day before Thanksgiving
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:November 26, 1986
Last Updated:September 27, 2026
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Phone: 3603377101
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Case Information
Incident:November 26, 1986
Last Updated:September 27, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 3603377101
You can remain anonymous