The person at the center of this case
Marlane L Koue Castaneda
Missing Person · Open
13 years waiting · since 2012
Missing Person: Marlane L Koue Castaneda
Justice for Marlane L Koue Castaneda — the trail went cold in 2012, but the truth hasn't.
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Key leads to think about
👁️
witness
Lead #1Who was the last person to see or speak with Marlane on October 1, 2012?
💡
clue
Lead #2What were the specific circumstances of her disappearance that day?
🔍
evidence
Lead #3Has any physical evidence or personal belongings been recovered since her disappearance?
Marlane L Koue Castaneda, a 54-year-old woman, was last seen on October 1, 2012, in Carlsbad, San Diego, California. Her disappearance circumstances remain unclear, and no updates on her whereabouts have been publicly reported in over a decade. Anyone with information about her disappearance is urged to contact the Oceanside Police Department.
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Official wording
Source Narrative
NamUs case MP18159. Missing person: Marlane L Koue Castaneda.
Last known contact: 2012-10-01 in Carlsbad, San Diego, CA. Circumstances: Last seen on 10/01/2012 Demographics: 54 years, Female, White / Caucasian.
Physical description: 5 ft 3 in, 150 lbs, hair: Red/Auburn, eyes: Brown. Investigating agency: Oceanside Police Department | 12013655.
Timeline of Events
👁️
2012-10-01
Last Known Contact
Marlane L Koue Castaneda was last seen on October 1, 2012, in Carlsbad, San Diego, California.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:October 1, 2012
Last Updated:May 28, 2026
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Phone: 7604354846
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Case Information
Incident:October 1, 2012
Last Updated:May 28, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 7604354846
You can remain anonymous