The man accused of murdering a prominent California Institute of Technology astrophysicist showed little remorse for his alleged crime during a court appearance on Wednesday.

Freddy Snyder, 29, is accused of gunning down Carl Grillmair, 67, a world-renowned researcher at Caltech’s IPAC Science and Data Center on Feb. 16 at his home in Llano, 75 miles north of Los Angeles.

Snyder was in court Wednesday where he repeatedly smiled and smirked.

Snyder did not enter a plea during the brief hearing. His arraignment was continued until May 26. 

In February, police responded to a 911 call and found the astrophysicist bleeding from his torso on the front porch of his remote home in Antelope Valley. He was given life saving measures but pronounced dead at the scene.

A nearby car jacking call came in soon after leading authorities to Snyder.

The sheriff said: “While investigating the shooting call, Palmdale Sheriff’s Station deputies also responded to a carjacking call. The suspect who committed the carjacking was arrested.”

According to documents obtained by the Los Angeles Times. Snyder lived just two miles away from Grillmair and had a history of trespassing on the scientist’s property, 

Grillmair called authorities to report a trespasser on his property Dec. 20, according to sheriff’s officials and court records.

When deputies arrived, they found Snyder nearby carrying a loaded, unregistered rifle. He claimed he was walking to the post office and carried the weapon for protection against wild animals. Property records indicate the post office was located in the opposite direction from Snyder’s home.

Snyder was arrested on a felony weapons charge, and is further accused of attempting to escape the Palmdale station jail the following day, a criminal complaint showed.

During his Dec. 23 court appearance, Snyder was released on his own recognizance. By Feb. 5 — less than two weeks before the shooting — prosecutors moved to drop the charges entirely given his lack of prior criminal record.

Snyder was arrested following a brief pursuit after he allegedly threatened his mother and carjacked her vehicle shortly after the shooting. 

The astrophysicist murder comes following a string of other mysterious disappearances and deaths of nuclear and space scientists.

Grillmair is one of at least 11 people who have either disappeared or died since 2022 that were involved in nuclear science and space research, with some connected to the study of Unidentified Anomalous Phenomena (UAPs).

Grillmair, 47; Jason Thomas, 45; Michael David Hicks, 59, Frank Maiwald, 61; Nuno Loureiro, 47; and Amy Eskridge, 34, all died between 2023 and 2026. Each played a key role in vital scientific research, Fox News Digital previously reported.

Monica Reza, 60; Melissa Casias, 53; Anthony Chavez, 79; Steven Garcia, 48; and retired Air Force Maj. Gen. William Neil McCasland, 68, were all reported missing between 2023 and 2026. All the disappearances occurred under suspicious circumstances.