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Crime Solvers Central
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 (MP16827) and 1 other source
In the vast and often unforgiving landscape of the Arizona desert, the story of Manuel Guaman Mayancela's disappearance began on August 1, 2011. At 21 years old, the young man of Hispanic/Latino descent was last seen in the area of Santa Rosa, Arizona, a detail that marks the start of a prolonged period of uncertainty for his loved ones. His journey was fraught with peril, as he was in the process of crossing the U.S.-Mexico border when he vanished. Accounts from that time suggest he was with a group, but for reasons that remain unclear, he was left behind in the harsh terrain near Santa Rosa. Standing at approximately 5 feet 5 inches and weighing around 140 pounds, with black hair and black eyes, Manuel was distinguished by a scar on one of his ankles from a dog bite.

The circumstances surrounding Manuel's disappearance paint a picture of a desperate situation. It is believed that he may have attempted to signal for help by lighting a fire, a poignant detail that underscores the gravity of his predicament. He was reportedly carrying a green backpack and a black cap with a white line. His clothing consisted of a yellow plaid shirt, a blue shirt, and blue jeans. Among his possessions were numerous papers containing phone numbers, and a belt with hidden papers bearing names and numbers, suggesting a collection of contacts he held dear or deemed important. He was also thought to have been in possession of Guatemalan phone numbers. The Pima County Medical Examiner's Office is the investigating agency in his case.

The days and years that have followed have not brought definitive answers regarding Manuel's whereabouts. The initial report of his disappearance was filed on August 15, 2011, and his case was created in the National Missing and Unidentified Persons System on July 30, 2012. This official record serves as a lasting beacon of hope for his family and a crucial tool for law enforcement. The case of Manuel Guaman Mayancela is a heart-wrenching example of the dangers faced by individuals undertaking perilous journeys. His story is one of many that highlight the human element behind immigration statistics and the profound sense of loss experienced by families left without answers. The overview of this case is one of a young man who vanished under dire circumstances, leaving behind only a handful of descriptive details and the lingering question of his fate in the Arizona desert.

Last Seen: Aug 1, 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.

85%Strong
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 21
Race 100%Hispanic
Location 95%30 mi away, same state
TimingFound same day as last seen
Height 100%5'5" vs 5'5"
Hair 100%Black vs Black
Eyes 90%Brown vs Black
83%Moderate
John Doe — Near Kupk Village, Arizona - unidentified case UP16418
John Doe — Near Kupk Village, Arizona
UP16418 • Found May 15, 2016
View case
Sex ✓Male
Age 100%Est. 16–21 vs 21 when missing
Race 100%Hispanic
Location 95%29 mi away, same county
TimingFound 5 years after last seen
Height 100%5'6" vs 5'5"
Hair 100%Black vs Black
Eyes 90%Brown vs Black
83%Moderate
John Doe — Queenswell Village, Arizona - unidentified case UP9067
John Doe — Queenswell Village, Arizona
UP9067 • Found Jul 7, 2011
View case
Sex ✓Male
Age 100%Est. 20–35 vs 21
Race 100%Hispanic
Location 98%19 mi away, same county
TimingFound same day as last seen
Height 84%5'3" vs 5'5"
Hair 100%Black vs Black
82%Moderate
John Doe — Cowlic, Tohono O'Odham Nation, Arizona - unidentified case UP12076 View case
Sex ✓Male
Age 76%Est. 25–36 vs 21 when missing
Race 100%Hispanic
Location 93%36 mi away, same county
TimingFound 23 months after last seen
Height 100%5'4" vs 5'5"
Weight 100%136 lb vs 140 lb
Hair 100%Black vs Black
Eyes 90%Brown vs Black
82%Moderate
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 21 when missing
Race 100%Hispanic
Location 85%63 mi away, same county
TimingFound 21 months after last seen
Height 100%5'4" vs 5'5"
Weight 100%133 lb vs 140 lb
Hair 100%Black vs Black
Eyes 90%Brown vs Black
82%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 21
Race 100%Hispanic
Location 95%30 mi away, same county
TimingFound 9 months after last seen
Height 100%5'5" vs 5'5"
82%Moderate
John Doe — Maricopa, Arizona - unidentified case UP10072
John Doe — Maricopa, Arizona
UP10072 • Found Sep 25, 2011
View case
Sex ✓Male
Age 100%Est. 19–30 vs 21
Race 100%Hispanic
Location 89%51 mi away, same state
TimingFound 8 weeks after last seen
Height 100%5'4" vs 5'5"
Hair 100%Black vs Black
81%Moderate
John Doe — Sil Nakya, Arizona - unidentified case UP96015
John Doe — Sil Nakya, Arizona
UP96015 • Found Jul 26, 2022
View case
Sex ✓Male
Age 100%Est. 25–40 vs 21 when missing
Race 100%Hispanic
Location 99%15 mi away, same county
TimingFound 11 years after last seen
Height 100%5'5" vs 5'5"
Hair 100%Black vs Black
81%Moderate
John Doe — Near Mountain Village, Arizona - unidentified case UP15177
John Doe — Near Mountain Village, Arizona
UP15177 • Found Aug 24, 2015
View case
Sex ✓Male
Age 100%Est. 20–28 vs 21 when missing
Race 100%Hispanic
Location 95%29 mi away, same county
TimingFound 4 years after last seen
Height 100%5'5" vs 5'5"
81%Moderate
John Doe — Near Ajo, Arizona - unidentified case UP14501
John Doe — Near Ajo, Arizona
UP14501 • Found Jul 4, 2015
View case
Sex ✓Male
Age 100%Est. 16–21 vs 21 when missing
Race 100%Hispanic
Location 90%48 mi away, same county
TimingFound 4 years after last seen
Height 100%5'5" vs 5'5"
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.