Feds Probe Troubling SoCal Scientists' Deaths

Federal authorities are reviewing a cluster of deaths and disappearances involving at least 10 scientists and staff tied to nuclear or space research, including four with Southern California ties. (cbsnews.com) The Federal Bureau of Investigation said April 21 that it is “spearheading the effort” to look for connections and is working with the Department of Energy, the Department of War, and state and local law enforcement. President Donald Trump said April 16 that the matter was “pretty serious stuff.” (cbsnews.com) The Southern California cases center on three people linked to NASA’s Jet Propulsion Laboratory and one Caltech scientist: Michael David Hicks, 59, who died July 30, 2023; Frank Maiwald, 61, who died July 4, 2024; Monica Reza, 60, who disappeared June 22, 2025; and Carl Grillmair, 67, who was shot to death in February 2026. (nbclosangeles.com) Reza, also identified in some records as Monica Jacinto, was last seen at about 9:10 a.m. on June 22, 2025, near the 6000-foot day-use parking area on Angeles Crest Highway, according to Los Angeles County sheriff’s case notices. Grillmair was found mortally wounded on his front porch in Llano on February 16, and Los Angeles County homicide detectives opened a murder investigation. (solvethecase.org) (cbsnews.com) Jet Propulsion Laboratory is a NASA center managed by Caltech in Pasadena, and several of the people under review worked on planetary science, spacecraft systems, or other sensitive research. Federal officials have not said the cases are linked, only that they are checking for common threads. (pasadenanow.com) (cbsnews.com) That caution runs through the public statements. CBS News reported that people close to the separate investigations said they do not currently see links between the cases, even as online speculation has pushed the issue into national politics. (cbsnews.com) The White House said April 17 that it was working with federal agencies and the Federal Bureau of Investigation to “holistically review” the cases, and the House Oversight Committee followed on April 20 by requesting briefings from the Federal Bureau of Investigation, NASA, the Department of Energy, and the Department of War. (pasadenanow.com) (oversight.house.gov) In its statement, NASA said nothing related to the agency indicates a national security threat. House investigators took a broader view, writing that if the reports are accurate, the deaths and disappearances “may represent a grave threat” to personnel with access to scientific secrets. (pasadenanow.com) (oversight.house.gov) For now, the clearest fact is the scope: cases dating back to 2023 are being pulled into one federal review, while local investigations into individual deaths and disappearances continue on their own tracks. (nbclosangeles.com) (pasadenanow.com)