Crime Solvers Central
Crime Solvers Central
298 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP16450) and 2 other sources
In the vast and often unforgiving landscape of the Arizona-Mexico border, the story of Luis Fernando Soto Ramirez is one of many that begin with hope and end in an unsettling silence. At 26 years old, Luis, also known by his nickname 'Prona,' was last seen on April 11, 2010. His last known location was in the vicinity of Lukeville, a small community in Pima County, Arizona, situated directly on the international border. The circumstances surrounding his disappearance are sparse, with reports indicating he was in the process of crossing the border from Mexico into the United States. Whether he was near Lukeville in Pima County or the San Luis area in Yuma County remains uncertain, adding another layer of complexity to the efforts to find him.

Luis is described as a Hispanic male with black hair that had a hint of gray, and dark brown eyes. He stood at 5 feet 6 inches tall and weighed between 150 and 170 pounds. Distinguishing features included a pierced ear and a scar from a cut on his eyebrow. When he was last seen, he was wearing navy blue denim pants, a green belt with a metal buckle, and either blue and white Nike tennis shoes or black shoes. He also had on a green camouflage military-style cap and was carrying a black wallet with approximately 4,000 pesos. These personal effects, along with the dreams and aspirations he likely carried, vanished with him into the harsh borderlands.

The investigation into Luis's disappearance is being handled by the Pima County Medical Examiner's Office, a detail that underscores the grim possibilities that are often a reality in this region. His case was officially created in the National Missing and Unidentified Persons System on July 30, 2012, more than two years after he was last seen. The case serves as a poignant reminder of the countless individuals who go missing while attempting to cross the border, their fates often unknown to their loved ones who are left to grapple with uncertainty. The overview of this case highlights the inherent dangers of such journeys and the profound and lasting impact on the families who are left waiting for answers that may never come.

Last Seen: Apr 11, 2010

Links to Additional Sources (2)

See any mistakes? Let us know!

Possible Unidentified Matches (10)

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.

83%Moderate
John Doe — Cowlic, Tohono O'Odham Nation, Arizona - unidentified case UP12076 View case
Sex ✓Male
Age 100%Est. 25–36 vs 26 when missing
Race 100%Hispanic
Location 90%49 mi away, same county
TimingFound 3 years after last seen
Height 84%5'4" vs 5'6"
Weight 100%136 lb vs 150–170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
83%Moderate
John Doe — Papago, Arizona - unidentified case UP9196
John Doe — Papago, Arizona
UP9196 • Found Jul 23, 2011
View case
Sex ✓Male
Age 100%Est. 20–35 vs 26 when missing
Race 100%Hispanic
Location 88%55 mi away, same state
TimingFound 15 months after last seen
Height 100%5'5" vs 5'6"
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
82%Moderate
John Doe — Ajo, Arizona - unidentified case UP8757
John Doe — Ajo, Arizona
UP8757 • Found Aug 20, 2010
View case
Sex ✓Male
Age 100%Est. 20–30 vs 26
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 4 months after last seen
Height 84%5'8" vs 5'6"
Hair 100%Black vs Black
82%Moderate
John Doe — Topawa, Arizona - unidentified case UP8737
John Doe — Topawa, Arizona
UP8737 • Found Jul 13, 2010
View case
Sex ✓Male
Age 100%Est. 25–35 vs 26
Race 100%Hispanic
Location 87%58 mi away, same county
TimingFound 3 months after last seen
Height 100%5'5" vs 5'6"
Hair 100%Black vs Black
81%Moderate
John Doe — Near Papago Farms, Arizona - unidentified case UP12294
John Doe — Near Papago Farms, Arizona
UP12294 • Found Oct 26, 2013
View case
Sex ✓Male
Age 100%Est. 19–27 vs 26 when missing
Race 100%Hispanic
Location 95%30 mi away, same county
TimingFound 4 years after last seen
Height 100%5'5" vs 5'6"
80%Moderate
John Doe — Arizona - unidentified case UP14730
John Doe — Arizona
UP14730 • Found Sep 7, 2015
View case
Sex ✓Male
Age 100%Est. 18–30 vs 26 when missing
Race 100%Hispanic
Location 96%27 mi away, same county
TimingFound 5 years after last seen
Height 100%5'5" vs 5'6"
80%Moderate
John Doe — Ajo, Arizona - unidentified case UP13829
John Doe — Ajo, Arizona
UP13829 • Found Dec 3, 2014
View case
Sex ✓Male
Age 100%Est. 28–40 vs 26 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 5 years after last seen
Height 100%5'6" vs 5'6"
80%Moderate
John Doe — Near Big Field Village, Arizona - unidentified case UP11595
John Doe — Near Big Field Village, Arizona
UP11595 • Found May 8, 2013
View case
Sex ✓Male
Age 85%Est. 25–45 vs 26 when missing
Race 100%Hispanic
Location 84%68 mi away, same county
TimingFound 3 years after last seen
Height 84%5'4" vs 5'6"
Weight 100%176 lb vs 150–170 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
80%Moderate
John Doe — Near Ajo, Arizona - unidentified case UP12917
John Doe — Near Ajo, Arizona
UP12917 • Found Jul 15, 2012
View case
Sex ✓Male
Age 85%Est. 30–55 vs 26 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 2 years after last seen
Height 84%5'4" vs 5'6"
Weight 100%150 lb vs 150–170 lb
Hair 40%Gray vs Black
Eyes 100%Brown vs Brown
80%Moderate
John Doe — Sells, Arizona - unidentified case UP10439
John Doe — Sells, Arizona
UP10439 • Found May 1, 2012
View case
Sex ✓Male
Age 100%Est. 20–35 vs 26 when missing
Race 100%Hispanic
Location 88%55 mi away, same county
TimingFound 2 years after last seen
Height 100%5'5" vs 5'6"

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.