Crime Solvers Central
Crime Solvers Central
298 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 (MP16768) and 2 other sources
On May 31, 2011, a 40-year-old man named Manuel Gustavo Lozano-Contreras vanished near Lukeville, Arizona. He was reportedly in the process of crossing the U.S.-Mexico border on foot when all contact was lost. At the time, Lozano-Contreras was described as a Hispanic male, standing between 5 feet 3 inches and 5 feet 5 inches tall, and weighing approximately 145 to 155 pounds. He had black hair, brown eyes, and a mustache. Distinctive physical features included scars on his chin, back, and eyebrows. The journey he undertook is known to be perilous, traversing a harsh and unforgiving desert landscape, a reality that adds a layer of concern to his sudden disappearance.

Lozano-Contreras was well-prepared for a journey, carrying a black backpack filled with various personal items and medications. He was dressed in a brown and white plaid cotton shirt, two pairs of Wrangler jeans, one blue and one gray, and white cotton underwear. His footwear consisted of distinctive three-toned brown leather cowboy boots. The contents of his backpack provided a glimpse into his preparations and personal life, containing medicines such as Naproxen and aspirin, a black leather wallet, Ray-Ban style glasses, a red handkerchief, and religious images of San Judas Tadeo. The detailed list of his clothing and possessions offers a poignant picture of the man who seemingly vanished into the vastness of the Arizona desert.

The investigation into the disappearance of Manuel Lozano-Contreras was handled by the Pima County Office of the Medical Examiner. He may have also used the alias Gustavo Lozano Contreras, a detail noted by investigators. Despite the passage of more than a decade, the specific circumstances leading to his disappearance remain unknown, and his case is a somber reminder of the many individuals who go missing while attempting to cross the border. The lack of resolution leaves a void for his loved ones, a painful ambiguity that is a common thread in the stories of the missing. This case serves as an overview of the silent crisis that unfolds in the borderlands, where countless individuals disappear, leaving behind families to grapple with enduring uncertainty and the hope of one day finding answers.

Last Seen: May 31, 2011

Links to Additional Sources (2)

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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.

82%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 40 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 14 months after last seen
Height 100%5'4" vs 5'3"–5'5"
Weight 100%150 lb vs 145–155 lb
Hair 40%Gray vs Black
Eyes 100%Brown vs Brown
81%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 40 when missing
Race 100%Hispanic
Location 84%68 mi away, same county
TimingFound 23 months after last seen
Height 100%5'4" vs 5'3"–5'5"
Weight 92%176 lb vs 145–155 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
81%Moderate
John Doe — Onion Stand, Tohono O'odham Res, Arizona - unidentified case UP10075 View case
Sex ✓Male
Age 100%Est. 30–45 vs 40
Race 100%Hispanic
Location 90%46 mi away, same county
TimingFound 8 months after last seen
Height 100%5'5" vs 5'3"–5'5"
80%Moderate
John Doe — Ajo, Arizona - unidentified case UP121658
John Doe — Ajo, Arizona
UP121658 • Found Aug 22, 2023
View case
Sex ✓Male
Age 100%Est. 28–40 vs 40 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 12 years after last seen
Height 100%5'0"–5'3" vs 5'3"–5'5"
Hair 100%Black vs Black
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 40 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 4 years after last seen
Height 100%5'6" vs 5'3"–5'5"
80%Moderate
John Doe — Arizona - unidentified case UP13034
John Doe — Arizona
UP13034 • Found Jun 25, 2014
View case
Sex ✓Male
Age 100%Est. 25–40 vs 40 when missing
Race 100%Hispanic
Location 84%68 mi away, same county
TimingFound 3 years after last seen
Height 100%5'3" vs 5'3"–5'5"
Hair 100%Black vs Black
80%Moderate
John Doe — Ajo, Arizona - unidentified case UP13020
John Doe — Ajo, Arizona
UP13020 • Found Jun 10, 2014
View case
Sex ✓Male
Age 85%Est. 26–45 vs 40 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 3 years after last seen
Height 100%5'5" vs 5'3"–5'5"
Weight 56%100 lb vs 145–155 lb
Hair 40%Gray vs Black
Eyes 100%Brown vs Brown
80%Moderate
John Doe — Lukeville, Arizona - unidentified case UP9085
John Doe — Lukeville, Arizona
UP9085 • Found Jul 4, 2011
View case
Sex ✓Male
Age 85%Est. 35–55 vs 40
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 5 weeks after last seen
Height 100%5'6" vs 5'3"–5'5"
Hair 40%Gray vs Black
79%Possible
John Doe — Sells, Arizona - unidentified case UP92525
John Doe — Sells, Arizona
UP92525 • Found May 31, 2022
View case
Sex ✓Male
Age 100%Est. 25–40 vs 40 when missing
Race 100%Hispanic
Location 88%55 mi away, same county
TimingFound 11 years after last seen
Height 100%5'1"–5'5" vs 5'3"–5'5"
Hair 100%Black vs Black
79%Possible
John Doe — Menagers Dam, Arizona - unidentified case UP106624
John Doe — Menagers Dam, Arizona
UP106624 • Found Feb 4, 2021
View case
Sex ✓Male
Age 100%Est. 28–40 vs 40 when missing
Race 100%Hispanic
Location 98%16 mi away, same county
TimingFound 10 years after last seen
Height 100%5'4"–5'8" vs 5'3"–5'5"

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.