Eleven Scientists, Military Officials, and Aerospace Researchers Have Died or Vanished. Now Congress Wants Answers
The discovery of a missing Los Alamos National Laboratory scientist’s remains in a remote New Mexico forest has reignited scrutiny surrounding a growing list of deaths and disappearances involving scientists, aerospace researchers, military officials, and nuclear security experts tied to some of America’s most sensitive research programs.
What began as a single missing persons case has evolved into a sprawling mystery that now spans multiple states, federal laboratories, NASA facilities, military research organizations, and private scientific institutions. The mounting questions have drawn the attention of lawmakers in Washington, including House Oversight Committee Chairman James Comer, who has publicly suggested that “something sinister could be happening” and indicated Congress may seek answers from federal agencies connected to the cases.
While authorities have not publicly linked the incidents together, the unusual concentration of deaths and disappearances involving individuals connected to advanced aerospace, defense, energy, and scientific research programs has fueled growing public concern.
The Discovery That Reignited the Mystery
The latest case involves Melissa Casillas, a 54-year-old scientist employed at the world famous Los Alamos National Laboratory in New Mexico. Casillas vanished in June 2025 under circumstances that immediately troubled her family. According to reports, she allegedly left behind essential personal items, including her vehicle, phone, keys, and wallet before disappearing. For nearly a year, investigators searched for answers.
Then on May 28, 2026, a hiker reportedly discovered skeletal remains in Carson National Forest. Authorities later identified the remains as Casillas. According to reports, her body was found seated against a tree with a gunshot wound to the skull. A handgun was allegedly located nearby. The official investigation remains ongoing.
However, a former homicide detective retained by Casillas’ family has publicly stated that he suspects foul play and believes important questions remain unanswered. Family members have also indicated they intend to pursue legal action related to the initial handling of the missing persons investigation.
A Researcher Who Claimed She Was Being Targeted
The Casillas case has drawn comparisons to the death of Amy Eskridge, an aerospace researcher known for her work involving advanced propulsion concepts. Eskridge died in 2022 from what authorities ruled a self inflicted gunshot wound. Her death later became the subject of intense speculation after retired British intelligence officer Frank Milburn revealed messages he claimed to have received from her before her death.
According to Milburn, Eskridge explicitly stated that if reports emerged claiming she had taken her own life, those reports would be false. Milburn has also alleged that Eskridge believed she was being harassed and monitored because of information she possessed regarding advanced aerospace technology and unidentified aerial phenomena. No public evidence has emerged proving those claims, but they continue to be cited by researchers examining her death.
The Missing Air Force General
Among the most alarming cases is the disappearance of retired Air Force General William McCasland. McCasland previously served as commander of the Air Force Research Laboratory, one of the military’s most important advanced technology organizations.
According to reports, he vanished from his Albuquerque area residence in February 2026. Authorities reportedly determined that hiking boots and a revolver were missing from the home, but McCasland himself has not been located. The disappearance attracted widespread attention because of McCasland’s extensive involvement with highly classified military research programs throughout his career. Months later, investigators have publicly released few details about the case.
Scientists, Engineers, and Researchers
The broader list extends well beyond Los Alamos and the Air Force. Cases cited by independent researchers include scientists associated with NASA’s Jet Propulsion Laboratory, MIT, advanced materials programs, fusion research, nuclear weapons security systems, and major private-sector scientific organizations.
Among them:
Monica Resza: a newly appointed director within NASA’s Jet Propulsion Laboratory materials processing division who reportedly vanished during a hiking trip in California.
Anthony Chavez: a longtime Los Alamos National Laboratory employee who reportedly disappeared from New Mexico after leaving behind his vehicle and personal belongings.
Nuno Loureiro: a prominent MIT physicist and fusion researcher whose death shocked colleagues in late 2025.
Steven Garcia: a security specialist connected to non-nuclear components of America’s nuclear arsenal who reportedly vanished without explanation.
Carl Gilmare: a respected astrophysicist associated with NASA projects who was fatally shot outside his California home.
Michael David Hicks and Frank Maywald: researchers connected to NASA’s Jet Propulsion Laboratory whose deaths have generated online speculation due to the limited public information available regarding the circumstances.
Jason Thomas: a senior scientist whose body was reportedly recovered from a lake under circumstances investigators continue to examine.
Coincidence or Something More?
At the center of the controversy is a question that currently has no definitive answer. Are these unrelated tragedies involving individuals who happened to work in highly specialized scientific fields? Or do the similarities point toward a larger pattern that has yet to be recognized by investigators?
At present, there is no publicly available evidence proving the cases are connected. Yet the overlap between advanced scientific research, defense programs, aerospace technology, and national security has made the incidents difficult for many observers to dismiss as simple coincidence. The lack of publicly released information in several cases has only intensified speculation.
Congress May Demand Answers
The growing attention from lawmakers could bring new scrutiny to the investigations. House Oversight Committee Chairman James Comer has publicly suggested federal agencies may be called before Congress to explain what is known about the deaths and disappearances and whether any connections have been explored. Such hearings would represent the first major federal effort to examine the incidents collectively rather than as isolated cases.
For now, many questions remain unanswered. What is known is that a scientist connected to Los Alamos National Laboratory was recently found dead after being missing for nearly a year. A retired Air Force general remains missing. Multiple scientists, engineers, and researchers connected to some of America’s most sensitive programs have died or vanished over the past several years. Whether those events ultimately prove to be linked or merely an extraordinary series of coincidences, may become one of the most closely watched national security investigations in recent memory.
