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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 (MP16775) and 1 other source
In the vast and often unforgiving landscape of the Sonoran Desert, another story of hope and uncertainty began on June 20, 2011. On that day, 39-year-old Martin Bautista Serrano, a Hispanic male, was last seen. His last known location was near the US/Mexico border in the area of Sasabe, Arizona, a remote and perilous crossing point. Martin, standing between 5'4' and 5'10' and weighing around 160 to 165 pounds, with black hair and brown eyes, was embarking on a journey that countless others have taken, one fraught with danger and the potential for vanishing without a trace. The Pima County Medical Examiner's Office opened a case file for him the following day, a testament to the harsh realities faced by those who traverse this difficult terrain. His personal belongings at the time of his disappearance painted a picture of a man prepared for a journey: a white cotton t-shirt, dark blue jeans, and a matching jean jacket, with white leather tennis shoes marked with the letter 'S'. He carried a black nylon backpack and wore a black leather belt with a chrome buckle. Distinctive features that his loved ones hoped would aid in his identification included piercings in both ears, a small scar on his left eyebrow, a large scar on his left hand, and six small scars near his right ear.

The region where Martin was last seen is a well-documented corridor of high-risk migration. The Pima County Office of the Medical Examiner is tragically familiar with cases like Martin's, as they handle a significant number of deaths of undocumented border crossers. The environment is harsh, and the journey is often undertaken with limited resources, leading to a high number of individuals becoming lost or succumbing to the elements. The area around Sasabe, in particular, has been the last known location for numerous other individuals who have gone missing under similar circumstances. These disappearances highlight a larger, ongoing humanitarian crisis at the border, where the desert itself can become an unmarked grave. The Pima County Medical Examiner's Office has become a crucial resource in the effort to identify the remains of those who have perished, though the task is immense given the conditions of the desert environment.

The investigation into Martin Bautista Serrano's disappearance is managed by the Pima County Medical Examiner's Office, under case number FSC MPR 1881. The sparse details of his case are a somber reflection of the countless others who have vanished in the borderlands. These are cases where the primary circumstance is the act of crossing the border itself, a journey that often severs communication and leaves families waiting for news that may never come. The reality for many is that their loved ones are never found, or are only identified years later through the painstaking work of forensic investigators. While there is no information to suggest Martin's fate, his case remains one of many unresolved and heart-wrenching stories from the Arizona border, a silent testament to the perils of a journey undertaken in search of a different future. The overview of this case is one of profound uncertainty, a narrative shared by thousands of families whose loved ones have disappeared into the vast and dangerous expanse of the US-Mexico border.

Last Seen: Jun 20, 2011

Links to Additional Sources (1)

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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.

83%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 39 when missing
Race 100%Hispanic
Location 92%40 mi away, same county
TimingFound 23 months after last seen
Height 100%5'4" vs 5'4"–5'10"
Weight 100%176 lb vs 160–165 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
83%Moderate
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 39
Race 100%Hispanic
Location 93%37 mi away, same state
TimingFound 11 months after last seen
Height 100%5'4" vs 5'4"–5'10"
Hair 100%Black vs Black
82%Moderate
John Doe — vicinity of New Fields, Arizona - unidentified case UP14173
John Doe — vicinity of New Fields, Arizona
UP14173 • Found Jan 29, 2015
View case
Sex ✓Male
Age 100%Est. 28–40 vs 39 when missing
Race 100%Hispanic
Location 99%12 mi away, same county
TimingFound 4 years after last seen
Height 100%5'5" vs 5'4"–5'10"
82%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 39 when missing
Race 100%Hispanic
Location 92%40 mi away, same county
TimingFound 3 years after last seen
Height 100%5'3" vs 5'4"–5'10"
Hair 100%Black vs Black
81%Moderate
John Doe — Near Choulic Village, Arizona - unidentified case UP16478
John Doe — Near Choulic Village, Arizona
UP16478 • Found Sep 12, 2016
View case
Sex ✓Male
Age 100%Est. 28–40 vs 39 when missing
Race 100%Hispanic
Location 98%19 mi away, same county
TimingFound 5 years after last seen
Height 100%5'7" vs 5'4"–5'10"
81%Moderate
John Doe — Arizona - unidentified case UP11971
John Doe — Arizona
UP11971 • Found Jul 28, 2013
View case
Sex ✓Male
Age 100%Est. 30–45 vs 39 when missing
Race 100%Hispanic
Location 92%40 mi away, same county
TimingFound 2 years after last seen
Height 100%5'7" vs 5'4"–5'10"
81%Moderate
John Doe — Covered Wells and South Mountain, Arizona - unidentified case UP10921 View case
Sex ✓Male
Age 100%Est. 30–42 vs 39 when missing
Race 100%Hispanic
Location 92%40 mi away, same county
TimingFound 17 months after last seen
Height 100%5'4" vs 5'4"–5'10"
81%Moderate
John Doe — Onion Stand, Tohono O'odham Res, Arizona - unidentified case UP10075 View case
Sex ✓Male
Age 100%Est. 30–45 vs 39
Race 100%Hispanic
Location 90%46 mi away, same county
TimingFound 7 months after last seen
Height 100%5'5" vs 5'4"–5'10"
81%Moderate
John Doe — Kupt Village, Arizona - unidentified case UP9335
John Doe — Kupt Village, Arizona
UP9335 • Found Sep 9, 2011
View case
Sex ✓Male
Age 100%Est. 30–45 vs 39
Race 100%Hispanic
Location 88%53 mi away, same county
TimingFound 3 months after last seen
Height 100%5'8" vs 5'4"–5'10"
80%Moderate
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 39 when missing
Race 100%Hispanic
Location 93%35 mi away, same county
TimingFound 11 years after last seen
Height 100%5'1"–5'5" vs 5'4"–5'10"
Hair 100%Black 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.