Anthony "Tony" Chavez

Last revised: 2026-05-08 — see history. 2026-05-08 revision retired the abbreviation "LAPD" from this file (collision risk with Los Angeles Police Department); local agency now spelled "Los Alamos Police Department" in full or "Los Alamos PD" short. Also fixed losalamosnm.gov URL path (News-articles → News-media) per server redirect.

Status: Missing Date of incident: May 4, 2025 (last seen); reported missing May 8, 2025 Location: 37th Street, Denver Steels neighborhood, Los Alamos, New Mexico Affiliation: Los Alamos National Laboratory (LANL) -- retired employee (retired 2017); specific role/title unknown Inclusion rationale: Retired longtime employee of LANL, a premier U.S. nuclear weapons research facility. Disappeared under unusual circumstances (left home without wallet, keys, phone, or vehicle). Case is part of the cluster of disappearances/deaths of defense/aerospace-connected personnel that prompted White House and National Nuclear Security Administration (NNSA) attention in 2025-2026. Moderate fit: LANL affiliation is strong, but his specific role is undocumented in public sources and he had been retired for eight years at the time of disappearance.

Key Dates

  • January 7, 1947: Date of birth T1 (NM DPS) Confirmed
  • 2017: Retired from LANL after decades of employment [T3/T5, Reported]
  • May 4, 2025: Last seen leaving his home on 37th Street on foot T1 (Los Alamos Police Department via local media) Reported
  • May 8, 2025: Reported as a missing person to the Los Alamos Police Department T1 Confirmed
  • May 12, 2025: Los Alamos PD issues public missing person notice; local media coverage begins [T1/T3 (Los Alamos Reporter), Confirmed]
  • May 19-20, 2025: Los Alamos PD issues update stating search continues; trails hiked, flyers distributed, surveillance footage reviewed T1 (county press release via Los Alamos Reporter, LA Daily Post) Confirmed
  • June 25, 2025: Still missing after seven weeks per local reporting T3 (Boomtown) Reported
  • April 2026: Case included in broader federal review of missing/dead scientists; NNSA states it is "looking into the matter" T4 (CBS News, KOB) Reported

Narrative of Known Facts

Anthony "Tony" Chavez, born January 7, 1947, was a longtime resident of Los Alamos, New Mexico, and a retired employee of Los Alamos National Laboratory T1 (NM DPS missing person record) Confirmed. He worked at LANL for decades before retiring in 2017, though his specific job title or area of work has not been publicly disclosed T3 Reported. His exact role and whether he held a security clearance are not documented in available public sources [gap].

On or around May 4, 2025, Chavez was last seen leaving his home on 37th Street in the Denver Steels neighborhood of Los Alamos on foot T1 Confirmed. He departed without his wallet, car keys, cigarettes, phone, or other personal items, all of which were found inside the residence T3 (Los Alamos Reporter, citing friend Carl Buckland) Reported. His vehicle, a 2024 gray Acura Integra, remained locked in the driveway T1 Confirmed. There were no signs of forced entry, struggle, or disturbance at the home T3 Reported.

A friend, Carl Buckland, posted on social media that the circumstances suggested Chavez had left intending to be gone for only a few minutes T3 (Los Alamos Reporter) Reported. Friends described Chavez as "active and intellectually engaged" with regular social contact T3 Reported. He frequently hiked in Pueblo Canyon, though inclement weather on May 4 made hiking unlikely that day T3 Reported. Notably, Chavez did not carry a cell phone T3 Reported.

He was formally reported missing on May 8, 2025 T1 Confirmed. The Los Alamos Police Department conducted searches including hiking local trails, distributing flyers, reviewing hours of surveillance footage, and following up on community tips T1 Confirmed. Cadaver dogs were deployed in Pueblo Canyon and surrounding trail areas but found nothing [T3/T5, Reported]. Multiple agencies coordinated in the search T1 Confirmed.

At the time of his disappearance, Chavez was 78 years old, 5 feet 6-7 inches tall, approximately 135-145 pounds, bald, brown eyes, and wore glasses T1 Confirmed. The Los Alamos PD initially stated he was "not believed to be endangered" T1 Confirmed.

As of April 2026, Chavez has not been found and remains listed on the New Mexico Department of Public Safety missing persons database T1 (NM DPS) Confirmed. His case was included in the broader cluster of disappearances and deaths involving government lab personnel that drew attention from the White House and federal agencies in early 2026 T4 (CBS News, Fortune, NewsNation) Reported. An NNSA spokeswoman stated the agency "is aware of reports related to employees of our labs, plants, and sites and is looking into the matter" T4 Reported. However, federal officials have not publicly confirmed any evidence linking the cases or indicating criminal activity in Chavez's disappearance T4 Reported.

What Is Documented vs. Reported vs. Alleged vs. Speculated

Documented (Tier 1 sources)

  • Chavez is listed on the NM DPS Missing Persons database (DOB 01/07/1947, last seen 05/08/2025 in Los Alamos, vehicle: 2024 gray Acura Integra).
  • Los Alamos PD issued official missing person notices on May 12 and May 19-20, 2025.
  • Deputy Chief James Rodriguez confirmed active investigation with multi-agency coordination.
  • Los Alamos PD stated Chavez was "not believed to be endangered" at time of initial report.
  • Physical description: 5'6"-5'7", 135-145 lbs, bald, brown eyes, glasses.

Reported (Tier 3–4 sources)

  • Worked at LANL for decades, retired 2017. Specific role unknown.
  • Left home May 4, 2025, on foot without wallet, keys, phone, cigarettes.
  • No signs of forced entry or struggle at home.
  • Friend Carl Buckland raised alarm via social media.
  • Friends described him as active, intellectually engaged, and a regular hiker in Pueblo Canyon.
  • Chavez did not carry a cell phone.
  • Cadaver dogs searched Pueblo Canyon area with no results.
  • NNSA acknowledged awareness of reports about lab employees and stated it is looking into the matter.

Alleged

  • No single-source allegations identified beyond the general claim that his disappearance may be connected to other cases involving defense/aerospace personnel. No evidence for this connection has been publicly presented.

Speculated

  • Online commentators and some media outlets have linked Chavez's disappearance to a broader pattern involving scientists and defense personnel. Experts quoted in mainstream coverage (CBS News) have stated they see no definitive links between the cases T4 Reported. The "Dark Pattern" framing appears primarily in aggregator and independent media [T5/T7].
  • Some speculation that Chavez may have wandered into the wilderness given his hiking habits and age, but no evidence (including cadaver dog searches) supports this.

Primary Sources

Secondary Sources

Named Expert Commentary

  • No named experts have commented specifically on the Chavez case in available sources.
  • CBS News article quoted unnamed experts/scientists who stated they do not see connections between the various cases.

Foreign Coverage

Contradictions

  • Physical description discrepancies: NM DPS lists height as 5'7" and weight as 145 lbs; LAPD notices via local media list 5'6" and 135 lbs. Minor but notable.
  • Race/ethnicity: NM DPS lists race as "Unknown/Other"; LAPD notice describes him as a "White male." The surname Chavez is commonly Hispanic/Latino.
  • Last seen date: NM DPS record lists last seen date as 05/08/2025 (the date he was reported missing); local media and friend accounts consistently say he was last seen on or around May 4, 2025.
  • NM DPS case entry date anomaly: The NM DPS record shows a "Case Entry Date" of 01/13/2023, which predates the disappearance by over two years. This may be a data entry error or indicate a prior missing person report; no explanation found.
  • "Not believed to be endangered" vs. "out of character": LAPD initially stated Chavez was not believed to be endangered, while simultaneously noting that family and friends considered the disappearance "out of character." These are not strictly contradictory but reflect a tension in the initial assessment.
  • Job title: No source provides a specific role at LANL. British Brief calls him a "contractor," which is unverified. Other sources say "employee." The distinction matters for assessing security clearance level and relevance to the cluster.
  • Melissa Casias — Both were LANL employees who disappeared in New Mexico within two months (Chavez May 2025, Casias June 2025). Different roles (Chavez's unknown, Casias was admin assistant) and locations (Los Alamos vs. Taos County, ~80 miles apart). Both left without wallet, phone, and keys. No documented professional connection.
  • Steven Garcia and William McCasland — All four New Mexico cases form the NM geographic cluster. Different institutions and circumstances but all occurred within a 10-month window. Garcia and McCasland disappeared from Albuquerque; Chavez from Los Alamos.

Analysis Cross-References

Open Questions

  1. What was Chavez's specific role at LANL? No public source identifies his job title, division, or whether he was a scientist, engineer, technician, or support staff. This is critical for assessing whether his disappearance fits the "missing scientist" pattern.
  2. Did Chavez hold a security clearance? Not documented. LANL employees commonly hold clearances, but this is not confirmed for Chavez.
  3. What explains the NM DPS case entry date of January 2023? This predates the reported disappearance by over two years.
  4. Was a Silver Alert issued? No evidence of a Silver Alert in available sources, despite Chavez being 78 years old and potentially qualifying.
  5. What surveillance footage was reviewed, and what did it show? LAPD confirmed reviewing hours of footage but results have not been disclosed.
  6. What were the weather conditions on May 4, 2025? Friend's account suggests inclement weather, but specifics are not documented.
  7. Has LANL itself issued any statement about Chavez? No institutional statement from LANL has been found, only the broader NNSA acknowledgment.
  8. What is the status of the federal review as it pertains to this specific case? The White House and NNSA have acknowledged reviewing cases broadly, but no case-specific findings have been released.
  9. Were there any medical conditions that could explain the disappearance? Not addressed in any available source.
  10. Who reported him missing on May 8? Family member or friend? Not specified in available sources.