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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 (MP15678) and 1 other source
In the winter of 2001, a man named Wilmer Isidro Paredes Lanza, between 36 and 37 years old, embarked on a journey that would leave his loved ones with unanswered questions for years to come. On February 26, 2001, he departed from Monterrey, Mexico, with the United States as his intended destination. This would be the last time his whereabouts were known, as he vanished under circumstances that remain unclear, somewhere in Arizona. His case is a somber reminder of the perils that can accompany the pursuit of a new beginning.

The details surrounding Wilmer's disappearance are sparse, leaving a void of information for those who continue to seek answers. Authorities in Pima County, Arizona, were eventually notified of his case, with a report being filed years later on October 30, 2009. The passage of time between his last contact and the official report highlights the often-complex nature of missing persons cases that span international borders. With no known clothing description, distinctive physical features, or information about his means of transportation, the investigation began with significant challenges.

The journey from Monterrey, Mexico, to the United States is one fraught with potential dangers, and many have disappeared while attempting the arduous trek. The lack of specific details in Wilmer's case makes it difficult to pinpoint what may have happened to him after he left Monterrey. His case is one of many where individuals have gone missing while crossing the border, leaving families to grapple with the unknown. The Pima County Office of the Medical Examiner is the investigating agency, a poignant indicator of the serious concerns for his well-being. The overarching narrative of his case is one of ambiguity and the enduring hope for resolution that families of the missing carry.

Last Seen: Feb 26, 2001

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.

80%Moderate
John Doe — Apache Junction, Arizona - unidentified case UP6490
John Doe — Apache Junction, Arizona
UP6490 • Found May 2, 2002
View case
Sex ✓Male
Age 85%Est. 26–44 vs 36–37 when missing
Race 100%Hispanic
Location 89%51 mi away, same state
TimingFound 14 months after last seen
Height 100%5'9" vs 4'0"–7'0"
Weight 100%106 lb vs 100–300 lb
79%Possible
John Doe — Phoenix, Arizona - unidentified case UP2034
John Doe — Phoenix, Arizona
UP2034 • Found Jul 27, 2003
View case
Sex ✓Male
Age 100%Est. 35–45 vs 36–37 when missing
Race 100%Hispanic
Location 84%70 mi away, same state
TimingFound 2 years after last seen
Height 100%6'0" vs 4'0"–7'0"
78%Possible
John Doe — Arizona - unidentified case UP6381
John Doe — Arizona
UP6381 • Found Aug 18, 2002
View case
Sex ✓Male
Age 100%Est. 30–45 vs 36–37 when missing
Race 100%Hispanic
Location 67%142 mi away, same county
TimingFound 18 months after last seen
Height 100%5'8" vs 4'0"–7'0"
Weight 100%106 lb vs 100–300 lb
77%Possible
John Doe — Casa Grande, Arizona - unidentified case UP5515
John Doe — Casa Grande, Arizona
UP5515 • Found Feb 12, 2004
View case
Sex ✓Male
Age 85%Est. 35–55 vs 36–37 when missing
Race 100%Hispanic
Location 78%88 mi away, same state
TimingFound 3 years after last seen
Height 100%5'3" vs 4'0"–7'0"
Weight 100%134 lb vs 100–300 lb
77%Possible
John Doe — Red Rock, Arizona - unidentified case UP6595
John Doe — Red Rock, Arizona
UP6595 • Found Oct 16, 2002
View case
Sex ✓Male
Age 85%Est. 24–46 vs 36–37 when missing
Race 100%Hispanic
Location 74%103 mi away, same state
TimingFound 20 months after last seen
Height 100%5'4" vs 4'0"–7'0"
Weight 100%140 lb vs 100–300 lb
77%Possible
John Doe — Avra Valley and Marana, Arizona - unidentified case UP5445
John Doe — Avra Valley and Marana, Arizona
UP5445 • Found Jun 2, 2002
View case
Sex ✓Male
Age 100%Est. 22–36 vs 36–37 when missing
Race 100%Hispanic
Location 73%112 mi away, same county
TimingFound 15 months after last seen
Height 100%5'7" vs 4'0"–7'0"
77%Possible
John Doe — Little Tucson Village, Arizona
UP7153 • Found Jun 20, 2001
View case
Sex ✓Male
Age 100%Est. 35–45 vs 36–37
Race 100%Hispanic
Location 70%126 mi away, same county
TimingFound 4 months after last seen
Height 100%5'7" vs 4'0"–7'0"
76%Possible
John Doe — Big Fields Village, Arizona - unidentified case UP80776
John Doe — Big Fields Village, Arizona
UP80776 • Found Jan 16, 2021
View case
Sex ✓Male
Age 85%Est. 25–45 vs 36–37 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 20 years after last seen
Height 100%4'10"–5'2" vs 4'0"–7'0"
76%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 36–37 when missing
Race 100%Hispanic
Location 73%112 mi away, same county
TimingFound 10 years after last seen
Height 100%5'5" vs 4'0"–7'0"
Weight 100%126 lb vs 100–300 lb
76%Possible
John Doe — White Horse Pass Village, Arizona - unidentified case UP6418
John Doe — White Horse Pass Village, Arizona
UP6418 • Found Jul 28, 2009
View case
Sex ✓Male
Age 100%Est. 28–40 vs 36–37 when missing
Race 100%Hispanic
Location 79%86 mi away, same state
TimingFound 8 years after last seen
Height 100%5'5" vs 4'0"–7'0"

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.