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Diana Nielsen Missing Person Case

Last seen in Longmont, Colorado on Sep 17, 2024

Victim Details

Jan 28, 2026

Jan 28, 2026

Diana

Nielsen

18

17

White / Caucasian

Female

Sep 17, 2024

Longmont

Colorado

07/07/2026

Case Description

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In the quiet community of Longmont, Colorado, a family is grappling with the uncertainty of a missing loved one. Seventeen-year-old Diana Nielsen was last seen on September 17, 2024, and her disappearance has left a void in the lives of those who know her. The circumstances surrounding her last known moments remain undisclosed by authorities, adding a layer of mystery to the distressing situation. Her case is registered with the National Center for Missing & Exploited Children, a stark remin ...
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Last Seen: Sep 17, 2024

Links to Additional Sources (2)

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  • Diana Cheryl Rose Nielsen Age: 17 Gender: Female Date Reported ...
  • Diana Nielsen- Colorado- 2024

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    Forum Posts (1)

    I’ve been thinking a lot about the neighborhood around where Diana went missing. Does anyone have ... ...Read More
    08/11/2025
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