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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 (MP16254) and 1 other source
In the summer of 2009, a young man named Esau Antonio Castaneda Vargas, aged 20, vanished in the Arizona desert. He was last seen on June 15, 2009, near Lukeville, a small community on the U.S.-Mexico border in Pima County. Esau, a Hispanic male with black hair and brown eyes, stood between 5'4' and 5'6' tall and weighed between 160 and 175 pounds. He had several distinguishing marks, including a large scar on his knee, another on his foot, and a mole on his lower leg. At the time of his disappearance, he was wearing gray Dickies pants, a blue, black, and white striped shirt, a black or white baseball cap with 'LA' on the front, and white Adidas shoes with black stripes. He also wore a red bracelet and a homemade rope belt and may have been carrying a prayer card for Malverde. It is also possible that Esau was using the alias Agustin Sanchez Nava.

The circumstances surrounding Esau's disappearance are harrowing. He was reportedly crossing the border with a group of friends who later recounted the events to his girlfriend. According to their account, Esau became exhausted and overheated, unable to continue the journey. His companions left him behind at a location they referred to as 'cerro de las chichis.' This spot was described as being about five hours from an intersection of Interstate 8 and a highway leading towards Maricopa, possibly near Gila Bend. The friends stated that someone later attempted to go back for Esau, but tragically, this individual, who had diabetes, reportedly died in the desert. There is some uncertainty about the exact date he was left behind, with the possibility that it could have been as late as June 24th.

The investigation into Esau's disappearance was handled by the Pima County Medical Examiner's Office, with a report being filed on July 22, 2009. The case highlights the perils faced by those attempting to cross the harsh terrain of the Arizona desert, where extreme temperatures and a lack of resources can quickly become life-threatening. The story of the person who went back for Esau and succumbed to the elements themselves underscores the grave dangers of the region. Despite the passage of time, the case remains a painful and unresolved chapter for his loved ones, a stark reminder of the human toll of border crossings. The details of what ultimately happened to Esau Castaneda Vargas remain unknown, leaving a void of uncertainty and grief.

Last Seen: Jun 15, 2009

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 — Papago, Arizona - unidentified case UP9196
John Doe — Papago, Arizona
UP9196 • Found Jul 23, 2011
View case
Sex ✓Male
Age 100%Est. 20–35 vs 20 when missing
Race 100%Hispanic
Location 88%55 mi away, same state
TimingFound 2 years after last seen
Height 100%5'5" vs 5'4"–5'6"
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
82%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 20 when missing
Race 100%Hispanic
Location 93%35 mi away, same county
TimingFound 7 years after last seen
Height 100%5'6" vs 5'4"–5'6"
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
82%Moderate
John Doe — Cowlic, Tohono O'Odham Nation, Arizona - unidentified case UP12076 View case
Sex ✓Male
Age 89%Est. 25–36 vs 20 when missing
Race 100%Hispanic
Location 90%49 mi away, same county
TimingFound 4 years after last seen
Height 100%5'4" vs 5'4"–5'6"
Weight 91%136 lb vs 160–175 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
82%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 20 when missing
Race 100%Hispanic
Location 92%41 mi away, same county
TimingFound 2 years after last seen
Height 100%5'3" vs 5'4"–5'6"
Hair 100%Black vs Black
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 20 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 14 months after last seen
Height 84%5'8" vs 5'4"–5'6"
Hair 100%Black vs Black
82%Moderate
John Doe — Sells, Arizona - unidentified case UP6356
John Doe — Sells, Arizona
UP6356 • Found May 26, 2009
View case
Sex ✓Male
Age 100%Est. 16–22 vs 20
Race 100%Hispanic
Location 88%55 mi away, same county
TimingFound same day as last seen
Height 100%5'4" vs 5'4"–5'6"
Hair 100%Black vs Black
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 20 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 6 years after last seen
Height 100%5'5" vs 5'4"–5'6"
Hair 100%Black vs Black
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 20 when missing
Race 100%Hispanic
Location 84%68 mi away, same county
TimingFound 4 years after last seen
Height 100%5'4" vs 5'4"–5'6"
Weight 100%176 lb vs 160–175 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
81%Moderate
John Doe — Tucson, Arizona - unidentified case UP8671
John Doe — Tucson, Arizona
UP8671 • Found Jan 25, 2010
View case
Sex ✓Male
Age 100%Est. 20–29 vs 20
Race 100%Hispanic
Location 73%110 mi away, same county
TimingFound 7 months after last seen
Height 84%5'8" vs 5'4"–5'6"
Weight 100%155 lb vs 160–175 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
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 20 when missing
Race 100%Hispanic
Location 96%27 mi away, same county
TimingFound 6 years after last seen
Height 100%5'5" vs 5'4"–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.