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302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP146165) and 1 other source
In the vast, rural landscape of Costilla County, Colorado, the summer of 2013 holds a somber memory, as it was when 46-year-old Louis Deherrera vanished. He was last seen in the area of San Luis, a small town with deep historical roots, on August 4th. The final image of him is a simple one: a man dressed in a white t-shirt and brown pants. After that day, his whereabouts became an enduring and painful mystery. With black hair, brown eyes, standing at five feet seven inches, and weighing around 155 pounds, Louis was a tangible presence who seemingly disappeared without a trace, leaving behind a void filled only with unanswered questions for his family and community.

The specific location of his disappearance was noted as the Cielo Vista Ranches area, a sprawling, rugged expanse of land near the community of San Francisco. This setting, while beautiful, is also remote and challenging terrain, which can complicate any search effort. The Costilla County Sheriff's Office opened an investigation into his disappearance, but the circumstances surrounding why he was in that specific area and what might have led to him going missing have remained elusive. Over the years, there has been a notable silence regarding the case, with few public updates or details released about the direction of the investigation, leaving a vacuum of information that has been difficult for those who knew him.

As time stretched from weeks into years, the investigation into Louis Deherrera's disappearance grew cold, and his case is now counted among the area's unsolved files. Though the active search may have ceased, he is not forgotten. His name has been included in resolutions for Colorado's Missing Persons Day, an official acknowledgment of the ongoing uncertainty and the need for continued awareness. The overview of this case is a narrative of sudden absence and the profound pain of not knowing. It is the story of a man who disappeared from a remote Colorado landscape one summer day, and the quiet, persistent effort to keep his memory alive in the hope that answers might one day surface.

Last Seen: Aug 4, 2013

Links to Additional Sources (1)

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Possible Unidentified Matches (2)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

77%Possible
John Doe — Aurora, Colorado - unidentified case UP16278
John Doe — Aurora, Colorado
UP16278 • Found Dec 13, 2016
View case
Sex ✓Male
Age 96%Est. 50–60 vs 46 when missing
Race 100%White
Location 59%180 mi away, same state
TimingFound 3 years after last seen
Height 100%5'6" vs 5'7"
Weight 74%191 lb vs 155 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
75%Possible
John Doe — Kirtland, New Mexico
UP65046 • Found Nov 23, 2019
View case
Sex ✓Male
Age 100%Est. 38–52 vs 46 when missing
Race 100%White
Location 62%165 mi away
TimingFound 6 years after last seen
Height 100%5'8" vs 5'7"
Weight 95%174 lb vs 155 lb

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.