Missing Person · Unknown
35 years waiting · since 1991
Missing Person: Sibylle Claus-Prange
Justice is overdue — the trail went cold in 1991, but the truth hasn't.
NamUs case MP160303. Missing person: Sibylle Claus-Prange. Last known contact: 1991-05-02 in Grand Canyon, Coconino, AZ. Circumstances: Sibylle and her husband Eberhard (MP160129) arrived in the US from Germany on 4/15/1991, flying to Las Vegas via New York. According to a letter written to his parents, they spent a few days in New York, then flew on to Las Vegas and were married there on 4/25/1991. On 5/4/1991, they utilized the Valley National Bank at Grand Canyon to send money back to Germany. The letter written to his parents indicated that they planned to go into the canyon on a trail and not leave. Demographics: 27 years, Female, White / Caucasian. Physical description: 5 ft 5 in, 115 lbs, hair: Brown, eyes: Brown. Investigating agency: Coconino County Sheriff's Office | S2200277 | 1991-09-17.
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Case Information
Incident:May 2, 1991
Last Updated:August 12, 2026
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Phone: 9287744523
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Case Information
Incident:May 2, 1991
Last Updated:August 12, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9287744523
You can remain anonymous