WASHINGTON, — April 24, 2026 : Federal agencies and congressional committees are conducting coordinated investigations into a series of deaths and disappearances involving U.S. scientists, aerospace engineers, and government-linked researchers reported between 2022 and 2026. While public speculation has suggested the possibility of a coordinated campaign or foreign involvement, authorities have not established any verified connection linking the cases.
Congressional Inquiry and Federal Response
On April 20, 2026, the House Committee on Oversight and Government Reform formally initiated an inquiry, requesting classified briefings by April 27 from the Department of Energy, Department of Defense, Federal Bureau of Investigation, and NASA. Lawmakers stated that if any connection exists, the incidents “may represent a grave threat to U.S. national security.”
Representative Eric Burlison suggested the possibility of a “foreign operation,” while Committee Chairman James Comer emphasized that Congress remains concerned and is seeking verified information.
The White House confirmed that the administration of Donald Trump is reviewing the matter. Press Secretary Karoline Leavitt stated that multiple federal agencies are involved. President Trump described the situation as “pretty serious,” while noting that investigators have not determined whether the incidents are connected.
The FBI is leading efforts to examine any potential links. NASA spokesperson Bethany Stevens stated that the agency is cooperating fully and that, at present, there is no indication of a national security threat tied specifically to NASA personnel.
Aerospace and Astrophysics Cases
Several cases involve individuals connected to NASA’s Jet Propulsion Laboratory and affiliated institutions:
-
Monica Reza (60), Director of Materials Processing at JPL and co-inventor of the Mondaloy superalloy, disappeared on June 22, 2025, while hiking the Mount Waterman Trail in California’s Angeles National Forest. She was last seen approximately 30 feet ahead of a companion. Despite extensive search operations, she remains missing.
-
Michael David Hicks (59), a JPL research scientist involved in missions such as DART, Dawn, and Deep Space 1, died in July 2023. He authored more than 80 peer-reviewed papers.
-
Frank Maiwald (61), a principal investigator at JPL overseeing Earth-observing and space instrumentation programs, died on July 4, 2024, in Los Angeles.
-
Carl Grillmair (67), an astronomer at the California Institute of Technology’s IPAC Science Center, died on February 16, 2026, after being shot outside his home in Llano, California.
Defense and Advanced Physics
-
Maj. Gen. William Neil McCasland (68), former commander of the Air Force Research Laboratory at Wright-Patterson Air Force Base, was reported missing on February 27, 2026, from Albuquerque, New Mexico. Investigators found his phone, glasses, and wearable devices at home, while his hiking boots and a .38-caliber revolver were missing. A Silver Alert remains active. His family has rejected speculation linking his disappearance to classified or extraterrestrial research.
-
Nuno Loureiro (47), director of the Plasma Science and Fusion Center at the Massachusetts Institute of Technology, was shot and killed at his home in Brookline, Massachusetts, in December 2025. Authorities identified the suspect as Claudio Manuel Neves Valente, a former classmate with a known grievance and a suspect in a separate incident at Brown University.
-
Amy Eskridge, co-founder of the Institute for Exotic Science, died in 2022 from a self-inflicted gunshot wound. Although her work involved experimental propulsion concepts, her family, including her father—a former NASA employee—has stated they do not consider her death suspicious.
Nuclear Security and Laboratory Personnel
Several individuals had connections to sensitive nuclear research facilities:
-
Steven Garcia (48), associated with the Kansas City National Security Campus, which produces non-nuclear components for U.S. weapons systems, was last seen on August 28, 2025, in Albuquerque, reportedly carrying a handgun.
-
Melissa Casias (53), an administrative employee with security clearance at Los Alamos National Laboratory, disappeared in June 2025 near Ranchos de Taos, New Mexico. Family members have disputed suggestions that she left voluntarily.
-
Anthony Chavez (79), a retired engineer who worked at Los Alamos’ Dual-Axis Radiographic Hydrodynamic Test facility, was last seen on May 8, 2025, leaving his home on foot without personal belongings.
Pharmaceutical Sector Case
- Jason Thomas (45), a researcher at Novartis focused on cancer treatment development, was reported missing in December 2025. His body was recovered from Lake Quannapowitt, Massachusetts, in March 2026.
Ongoing Investigations and Expert Views
Local and federal authorities continue to investigate each case individually while assessing whether any connections exist. The Bernalillo County Sheriff’s Office, handling McCasland’s disappearance, has emphasized reliance on verified evidence and public assistance.
Experts familiar with some of the individuals have urged caution. Joe Masiero, who worked with multiple deceased scientists, stated that the events may be coincidental, noting that independent tragedies can occur without a broader pattern.
Families of several individuals have also publicly rejected conspiracy-based interpretations, emphasizing known personal, medical, or criminal factors in specific cases.
Status of Findings
As of April 24, 2026, federal agencies, including the FBI and NASA, have not confirmed any coordinated link or foreign involvement in these incidents. Investigations remain ongoing, and Congress is awaiting further briefings.
No official timeline has been provided for final conclusions.
——— End of Article ———
