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Case Description
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Seventeen-year-old Diana Nielsen was last seen in Longmont, Colorado, on September 17, 2024. Her disappearance has been registered under the National Center for Missing & Exploited Children case number 2031995. Authorities have not released specific details regarding the circumstances under which she went missing.

Law enforcement agencies, including the Longmont Police Department, are actively seeking information that could lead to Diana's whereabouts. Community efforts to locate her ar ...Read More
Last Seen: Sep 17, 2024
Victim Details

Jan 28, 2026

Jan 28, 2026

Diana

Nielsen

17

17

White / Caucasian

Female

Sep 17, 2024

Longmont

Colorado

02/01/2026