On the morning of Saturday, December 6, 2025, Spencer Browne, a 17-year-old boy, was killed along U.S. 395 in Lassen County, California, near the Chilcoot–Vinton area not far from the Nevada state line. What began as a roadside stop on the southbound shoulder—near the Long Valley Agricultural Inspection Station—turned tense as two vehicles carrying multiple passengers pulled over in the same stretch of highway. Words flared, the confrontation tightened, and the stillness of the high-desert roadway broke into sudden violence.
A California Highway Patrol officer from the Portola Resident Post was already patrolling nearby and arrived just as gunfire erupted between the two groups. In the chaos that followed, the officer detained everyone involved and began rendering aid, but Spencer and his father, Richard Browne, died at the scene. Investigators later described the deaths as homicides caused by multiple gunshot wounds, turning that shoulder of U.S. 395 into a sealed-off crime scene while southbound lanes were shut down for the investigation.
Authorities identified a Reno resident, Isacc Anthony Pedroza, as the suspect and moved quickly to bring the case into court. Prosecutors filed a criminal complaint alleging two counts of murder, along with an allegation that a firearm was personally discharged and a separate charge related to transporting an assault weapon. Pedroza entered a not guilty plea at arraignment in Lassen Superior Court, with the next court date set for December 17, 2025.
As rumors spread in the days after the shooting, the district attorney’s office publicly pushed back on the speculation, stating that the incident was not road rage, not gang-related, and not an officer-involved shooting. With the investigation still active, officials indicated they were not releasing further detail about what sparked the confrontation, while emphasizing that court proceedings remain open to the public and urging anyone with information to contact the Quincy CHP office.
