The tragic case of the shooting of prominent California Institute of Technology astrophysicist, Carl Grillmair, continues to unfold with new details emerging. Grillmair, a 67-year-old world-renowned researcher at Caltech’s IPAC Science and Data Center, was fatally shot on February 16 at his home in Llano. The suspect, Freddy Snyder, 29, who lived just two miles away from Grillmair, had been on the scientist’s isolated desert property two months before the deadly encounter.
According to documents obtained by the Los Angeles Times, Snyder had a history of trespassing on Grillmair’s property. In December, Grillmair had called authorities to report a trespasser on his property, and Snyder was found nearby carrying a loaded, unregistered rifle. Snyder claimed he was walking to the post office and needed the weapon for protection against wild animals, although the post office was in the opposite direction from his home.
Snyder was arrested on a felony weapons charge but was released on his own recognizance after a court appearance on December 23. Prosecutors moved to drop the charges entirely less than two weeks before the shooting due to Snyder’s lack of prior criminal record. However, reports of Snyder’s erratic behavior continued, with one neighbor in Valyermo reporting a break-in at his home by Snyder just days after his release.
The motive for Grillmair’s killing remains unclear, and investigators are working to establish it. Following the shooting, Snyder was arrested after allegedly threatening his mother and carjacking her vehicle. His arraignment is scheduled for March 26 as the case continues to unfold.
The community and scientific world mourn the loss of Grillmair, a brilliant mind whose contributions to astrophysics will be remembered and cherished. As the investigation into his death progresses, more details may shed light on the events leading up to the tragic incident.

