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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 (MP23867) and 2 other sources
In the vast and often unforgiving landscape of the Sonoran Desert, the story of Julien Rios Quinones is one of quiet disappearance and lingering questions. On June 6, 1996, 35-year-old Julien was last seen in Lukeville, a small community on the Arizona-Mexico border in Pima County. A Hispanic male, he stood 5 feet 8 inches tall, weighed around 150 pounds, and had black hair with brown eyes. That day marked the beginning of a decades-long mystery, as Julien, who also used the alias Gonzales Villasenor Mario Alberto, vanished without a trace, leaving his family in a state of perpetual uncertainty.

Julien was not alone when he disappeared; he was with his brother, Vicene Quinonez. The two brothers had a shared objective: they were planning to cross the border from Mexico into the United States. Lukeville, their last known location, was the intended point of this crossing. After they were last seen on that summer day, all contact with them was lost. Neither man has been seen or heard from since, and their plan to enter the U.S. seemingly dissolved into the harsh desert environment, a region known for its perilous conditions for those who attempt to cross it.

The Pima County Sheriff's Department opened an investigation into the disappearance of the two brothers, but the case has grown cold over the years with few details available. Their files remain open, a silent testament to the lives interrupted and the answers that have yet to be found. The circumstances surrounding their vanishing are vague, with no evidence of what might have happened to them after they reached the border. An overview of the case presents a somber narrative: two brothers, Julien and Vicene Quinonez, embarked on a journey to cross the U.S. border together and disappeared, leaving behind an enduring mystery that has haunted their family for decades.

Last Seen: Jun 6, 1996

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.

81%Moderate
John Doe — Sasabe, Arizona - unidentified case UP7233
John Doe — Sasabe, Arizona
UP7233 • Found Nov 1, 2000
View case
Sex ✓Male
Age 100%Est. 22–34 vs 34 when missing
Race 100%Hispanic
Location 81%80 mi away, same county
TimingFound 4 years after last seen
Height 100%5'7" vs 5'8"
Weight 69%188 lb vs 150 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
79%Possible
John Doe — Lukeville, Arizona - unidentified case UP11061
John Doe — Lukeville, Arizona
UP11061 • Found Nov 22, 2012
View case
Sex ✓Male
Age 100%Est. 30–45 vs 34 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 16 years after last seen
Height 100%5'8" vs 5'8"
79%Possible
John Doe — Gunsight Village, Arizona - unidentified case UP11275
John Doe — Gunsight Village, Arizona
UP11275 • Found Jul 1, 2012
View case
Sex ✓Male
Age 85%Est. 23–40 vs 34 when missing
Race 100%Hispanic
Location 96%23 mi away, same county
TimingFound 16 years after last seen
Height 100%5'9" vs 5'8"
Weight 97%133 lb vs 150 lb
Hair 100%Black vs Black
79%Possible
John Doe — Lukeville, Arizona - unidentified case UP6395
John Doe — Lukeville, Arizona
UP6395 • Found Oct 20, 2009
View case
Sex ✓Male
Age 100%Est. 27–37 vs 34 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 13 years after last seen
Height 100%5'9" vs 5'8"
79%Possible
John Doe — Cowlic, Arizona - unidentified case UP4932
John Doe — Cowlic, Arizona
UP4932 • Found Jan 23, 2007
View case
Sex ✓Male
Age 85%Est. 25–45 vs 34 when missing
Race 100%Hispanic
Location 90%49 mi away, same county
TimingFound 11 years after last seen
Height 100%5'8" vs 5'8"
Weight 100%157 lb vs 150 lb
Hair 60%Brown vs Black
Eyes 100%Brown vs Brown
79%Possible
John Doe — Chico Shunie Village, Arizona - unidentified case UP5470
John Doe — Chico Shunie Village, Arizona
UP5470 • Found Jul 4, 2005
View case
Sex ✓Male
Age 100%Est. 22–35 vs 34 when missing
Race 100%Hispanic
Location 94%32 mi away, same county
TimingFound 9 years after last seen
Height 100%5'7" vs 5'8"
Hair 60%Brown vs Black
79%Possible
John Doe — Arivaca, Arizona - unidentified case UP6488
John Doe — Arivaca, Arizona
UP6488 • Found May 14, 2002
View case
Sex ✓Male
Age 85%Est. 26–44 vs 34 when missing
Race 100%Hispanic
Location 78%90 mi away, same county
TimingFound 6 years after last seen
Height 100%5'8" vs 5'8"
Weight 100%161 lb vs 150 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
78%Possible
John Doe — Ajo, Arizona - unidentified case UP8756
John Doe — Ajo, Arizona
UP8756 • Found Feb 25, 2011
View case
Sex ✓Male
Age 100%Est. 25–40 vs 34 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 15 years after last seen
Height 100%5'8" vs 5'8"
78%Possible
John Doe — Ajo, Arizona - unidentified case UP9045
John Doe — Ajo, Arizona
UP9045 • Found Mar 12, 2010
View case
Sex ✓Male
Age 100%Est. 22–35 vs 34 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 14 years after last seen
Height 100%5'7" vs 5'8"
78%Possible
John Doe — Ajo, Arizona - unidentified case UP5084
John Doe — Ajo, Arizona
UP5084 • Found Apr 23, 2008
View case
Sex ✓Male
Age 100%Est. 32–42 vs 34 when missing
Race 100%Hispanic
Location 94%34 mi away, same county
TimingFound 12 years after last seen
Height 100%5'8" vs 5'8"

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.