12 American Scientists Are Dead or Missing — FBI Just Confirmed It’s NOT a Coincidence…

The Vanishing Minds: 12 (or 13) Scientists, the FBI Investigation, and America’s National Security Alarm

What if the people safeguarding America’s most guarded scientific and military secrets started disappearing — one by one?

Not random civilians. Not low-level employees. Twelve (and possibly thirteen) highly vetted individuals with access to nuclear weapons research, fusion energy breakthroughs, classified aerospace technology, asteroid defense systems, and more. Some dead under suspicious circumstances. Others simply gone — vanishing without phones, wallets, glasses, or explanation.

In April 2026, the FBI confirmed it is spearheading a federal investigation into whether these cases are connected. The Department of Energy, Pentagon, NASA, and state/local authorities are all involved. House Oversight Committee Chairman James Comer called it “very unlikely” to be coincidence and labeled it a potential national security threat. President Donald Trump described it as “pretty serious stuff.”

This is not fringe internet theory. This is documented federal action.

In this comprehensive breakdown, we examine every name, timeline, and detail from the transcription and public records, the expert skepticism, the espionage theories, and why this pattern has Washington alarmed.

The Timeline: When the Pattern Emerged

The story begins in 2022, though connections surfaced later.

June 11, 2022: Amy Eskridge, a researcher focused on anti-gravity technology and exotic propulsion (linked to UFO/UAP-adjacent studies), died in Huntsville, Alabama, from a self-inflicted gunshot wound. She had reportedly expressed fears and left messages doubting any “suicide” narrative. Her death initially seemed isolated.

July 30, 2023: Michael David Hicks, a longtime NASA Jet Propulsion Laboratory (JPL) scientist who worked on asteroid deflection (DART mission) and deep space probes, died at home. Cause not fully detailed publicly; his daughter cited known health issues and rejected broader connections.

July 4, 2024: Frank Maywald, another JPL principal researcher specializing in space research, died in Los Angeles. Cause undisclosed. Two JPL scientists gone within roughly a year.

May 2024: Matthew Sullivan, 39, a former US Air Force intelligence officer, died in Falls Church, Virginia.

May 8, 2025: Anthony Chavez, former Los Alamos National Laboratory employee, disappeared. Los Alamos — birthplace of the Manhattan Project and a hub for nuclear weapons research.

June 22, 2025: Monica Jacinto Reza (sometimes referred to as Monica Razer/Reza), 60, Director of the Materials Processing Group at NASA JPL. She vanished while hiking in Angeles National Forest near Mount Waterman. Extensive searches with drones and canines yielded only a beanie hat off-trail. Her family says the case “does not add up”; she was still actively working at JPL. No direct FBI contact with family despite the federal probe.

June 26, 2025: Melissa Casias (or Cascio), administrative officer at Los Alamos, disappeared. Two Los Alamos personnel missing weeks apart.

August 28, 2025: Steven Garcia, government contractor at the Kansas City National Security Campus (Honeywell-operated, producing non-nuclear nuclear weapon components), vanished in Albuquerque, New Mexico.

December 16, 2025: Nuno Loureiro (often spelled Lorero in reports), 47, MIT professor and director of the Plasma Science and Fusion Center. Shot outside his home in Massachusetts. Murder unsolved at the time of many reports. His work on nuclear fusion — potentially game-changing clean energy and strategic technology — made him a high-value expert.

February 16, 2026: Carl Grillmair (or Gilmmeer/Grilmire), 67, Caltech astrophysicist linked to NASA’s near-Earth object detection programs. Shot on his porch in Llano, California. A 29-year-old man with prior trespassing on the property was arrested. Motive unclear; authorities say no confirmed link to the broader pattern.

February 27, 2026: Retired Air Force Maj. Gen. William Neil McCasland, 68, walked out of his Albuquerque home on foot, leaving behind his phone, prescription glasses, fitness tracker, and more. A former commander of Wright-Patterson Air Force Base (linked to air/space intelligence and historical UAP discussions), he later worked in aerospace defense. Extensive searches in the Sandia Mountains yielded nothing. Silver Alert issued.

March 17, 2026: Jason Thomas, 39, pharmaceutical researcher at Novartis working on cancer treatments, found dead in Lake Quannapowitt, Massachusetts. An outlier in field but included in the federal review. Two Massachusetts deaths months apart.

By April 2026, the count stood around 12 (6 dead, 5-6 missing). A congressman later referenced 13.

Institutions at the Core

These cases cluster around America’s crown jewels:

NASA JPL (spacecraft, asteroid defense, materials science)
Los Alamos National Laboratory (nuclear weapons)
MIT Plasma Science and Fusion Center (fusion energy)
Caltech and aerospace programs
Kansas City National Security Campus (nuclear components)
Wright-Patterson AFB (air/space intelligence)

The knowledge these individuals held resides in specialized minds — not easily replaced or reverse-engineered from documents.

Official Responses: Serious but Cautious

White House: Press Secretary acknowledged examination of connections. President Trump called it serious.
FBI: Spearheading effort with DOE, DoD, and partners to check for links. No confirmed connections announced, but investigation ongoing.
Congress: Oversight Committee demanding briefings from multiple agencies. Chairman Comer views it as a potential national security threat.
NASA: Cooperating but stated no indication of broader threat to its workforce.

Skeptics note cases span years, different institutions, and some have personal/medical explanations. “People do just die,” one former DOE official remarked. Thousands of nuclear scientists exist in the US; targeting a handful may not cripple programs. Some families, like Hicks’, push back against linking their loved one’s death.

Yet the government’s actions — multi-agency coordination, congressional priority — speak louder than disclaimers.

The Espionage Question: China or Foreign Adversary?

Many intelligence veterans point to foreign espionage. Targeted elimination or abduction of knowledge holders is a known tactic. China, in particular, has documented history of talent recruitment and IP theft.

Strategic logic: Degrade US nuclear deterrence, fusion leadership, space defense, and aerospace edge without kinetic war. Knowledge in heads > blueprints.

Former FBI officials cited this as a leading theory that “cannot be ruled out.”

Counterpoints: Scattered timeline, varying circumstances, and lack of hard evidence linking them as a coordinated plot. Some deaths (e.g., Grillmair) appear explained locally.

Why This Matters

These weren’t just employees — they were guardians of capabilities that define 21st-century power: energy independence, planetary defense, strategic deterrence.

If connected, it represents a sophisticated, low-visibility assault on US advantages. If coincidental, it still highlights vulnerabilities in protecting critical talent.

The FBI continues reviewing. DNA, genealogy tools, and inter-agency data sharing may yield answers. Congressional oversight ensures pressure for transparency.

As of mid-2026, families grieve, searches continue for the missing, and investigators dig deeper. Monica Reza’s family still awaits direct updates. McCasland remains unfound. Nuno Loureiro’s murder unsolved.

This is a story of brilliant minds who helped secure and advance the nation — now subjects of a federal probe into their fates.

America deserves answers. The families deserve truth. And the systems these experts built deserve protection.

What do you think? Are these cases connected through foul play, foreign actors, or tragic coincidence? Drop your thoughts below. Subscribe for updates as the FBI, Congress, and investigations unfold. This one isn’t over.

12 American Scientists Are Dead or Missing — FBI J...