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 (MP16047) and 3 other sources
In the vast and often unforgiving landscape of the Arizona desert, the story of Byron Noe Perez unfolds, a narrative of hope, uncertainty, and the enduring pain of a family left without answers. On December 12, 2007, a then 36-year-old Byron was in the midst of a journey that many undertake with dreams of a new beginning. He was crossing the U.S./Mexico border near Douglas, Arizona, in the company of a group of migrants. This area, a rugged stretch of desert terrain, would become the last known location where Byron was seen. The group he was with reportedly crossed the border from Agua Prieta, Mexico, and at some point during their arduous trek, Byron was left behind. The exact circumstances that led to his separation from the group remain unclear, adding a layer of complexity to his sudden disappearance.

The days turned into weeks, and with no word from Byron, the Pima County Office of the Medical Examiner opened an investigation into his case. The details that emerged painted a picture of a man unprepared for the harsh realities of the desert. At the time he went missing, Byron was described as a Hispanic male, standing between 5'3' and 5'4' tall, and weighing between 165 and 185 pounds. He had black hair and brown eyes. Among his distinguishing features was a noticeable marking on his neck. The clothing he wore on that fateful day provides a poignant glimpse into his final known moments: a black hooded sweatshirt, a light blue T-shirt, and two pairs of pants—one blue denim Wrangler brand and another of an unknown color by Lee. He also wore white underwear with blue stripes and yellow military-style boots. Perhaps the most heartbreaking detail is the mention of phone numbers embroidered in yellow on an unspecified item, a tangible link to a life and connections abruptly severed.

Years have passed since Byron Noe Perez was last seen, yet his case remains a somber reminder of the perils faced by those who traverse the borderlands. The lack of available images has made public appeals for information more challenging, leaving his family and investigators to rely on the sparse details of his physical description and clothing. Over time, his case has been cross-referenced with unidentified remains, a standard and sorrowful procedure in long-term missing persons investigations. Despite these efforts, the fate of Byron Perez remains unknown. His story is one of countless that have emerged from the border, a narrative of a journey interrupted and a life left in limbo, forever etched into the heart of the Arizona desert.

Last Seen: Dec 12, 2007

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.

80%Moderate
John Doe — Arizona - unidentified case UP9479
John Doe — Arizona
UP9479 • Found Apr 2, 2010
View case
Sex ✓Male
Age 85%Est. 15–35 vs 36 when missing
Race 100%Hispanic
Location 92%41 mi away, same county
TimingFound 2 years after last seen
Height 100%5'5" vs 5'3"–5'4"
Hair 100%Black vs Black
79%Possible
John Doe — Cowlic, Tohono O'Odham Nation, Arizona - unidentified case UP12076 View case
Sex ✓Male
Age 100%Est. 25–36 vs 36 when missing
Race 100%Hispanic
Location 66%147 mi away, same state
TimingFound 6 years after last seen
Height 100%5'4" vs 5'3"–5'4"
Weight 87%136 lb vs 165–185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
79%Possible
John Doe — Nogales, Arizona - unidentified case UP10775
John Doe — Nogales, Arizona
UP10775 • Found May 12, 2012
View case
Sex ✓Male
Age 100%Est. 25–39 vs 36 when missing
Race 100%Hispanic
Location 80%82 mi away, same state
TimingFound 4 years after last seen
Height 100%5'4" vs 5'3"–5'4"
Hair 100%Black vs Black
79%Possible
John Doe — Arizona
UP9439 • Found Oct 26, 2008
View case
Sex ✓Male
Age 85%Est. 25–44 vs 36
Race 100%Hispanic
Location 92%41 mi away, same county
TimingFound 10 months after last seen
Height 100%5'2" vs 5'3"–5'4"
78%Possible
John Doe — Hereford, Arizona - unidentified case UP94000
John Doe — Hereford, Arizona
UP94000 • Found Nov 11, 2021
View case
Sex ✓Male
Age 100%Est. 28–40 vs 36 when missing
Race 100%Hispanic
Location 94%33 mi away, same county
TimingFound 14 years after last seen
Height 100%5'5"–5'9" vs 5'3"–5'4"
78%Possible
John Doe — South Tucson, Arizona - unidentified case UP12008
John Doe — South Tucson, Arizona
UP12008 • Found May 9, 2013
View case
Sex ✓Male
Age 85%Est. 18–35 vs 36 when missing
Race 100%Hispanic
Location 75%102 mi away, same state
TimingFound 5 years after last seen
Height 100%5'4" vs 5'3"–5'4"
Weight 83%133 lb vs 165–185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
78%Possible
John Doe — Marana, Arizona - unidentified case UP8606
John Doe — Marana, Arizona
UP8606 • Found Sep 17, 2010
View case
Sex ✓Male
Age 100%Est. 30–45 vs 36 when missing
Race 100%Hispanic
Location 70%124 mi away, same state
TimingFound 3 years after last seen
Height 100%5'5" vs 5'3"–5'4"
Weight 75%126 lb vs 165–185 lb
Hair 100%Black vs Black
78%Possible
John Doe — Arizona - unidentified case UP9644
John Doe — Arizona
UP9644 • Found Jun 24, 2010
View case
Sex ✓Male
Age 85%Est. 28–44 vs 36 when missing
Race 100%Hispanic
Location 92%41 mi away, same county
TimingFound 3 years after last seen
Height 100%5'2" vs 5'3"–5'4"
78%Possible
John Doe — Arizona - unidentified case UP9440
John Doe — Arizona
UP9440 • Found Jan 7, 2009
View case
Sex ✓Male
Age 60%Est. 18–99 vs 36 when missing
Race 100%Hispanic
Location 92%41 mi away, same county
TimingFound 13 months after last seen
Height 100%5'2" vs 5'3"–5'4"
Weight 68%120 lb vs 165–185 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
78%Possible
John Doe — Gunsight, Arizona - unidentified case UP4924
John Doe — Gunsight, Arizona
UP4924 • Found Jun 24, 2008
View case
Sex ✓Male
Age 100%Est. 30–45 vs 36
Race 100%Hispanic
Location 73%109 mi away, same state
TimingFound 6 months after last seen
Height 100%5'4" vs 5'3"–5'4"
Hair 60%Brown vs Black

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.