Richard Browne, 43, male, was killed on December 6, 2025, after a roadside confrontation erupted into gunfire along southbound U.S. 395 near the Long Valley Agricultural Inspection Station in the Chilcoot-Vinton area of Lassen County, close to the Nevada state line. That morning, two vehicles carrying multiple people from Reno pulled onto the shoulder in the same stretch of high desert highway, and whatever brought them to a stop turned tense fast—an argument that moved from words to weapons before anyone could pull it back.
A California Highway Patrol officer from the Portola Resident Post was already nearby on patrol and arrived as shots were being fired between the groups. The officer detained everyone at the scene and tried to render aid, but the injuries were catastrophic. Browne and his teenage son, Spencer Browne, were pronounced dead at the scene; investigators later said both died from multiple gunshot wounds. The highway remained closed for hours while evidence was collected and traffic was diverted off the main corridor.
As the initial shock rippled outward, authorities emphasized how much remained uncertain: the exact trigger for the confrontation had not been publicly explained, and investigators said the circumstances leading up to the stop were still under review. Prosecutors also pushed back against early online speculation, stating the shooting was not being treated as road rage, not gang-related, and not connected to an officer-involved shooting.
In the days that followed, a suspect emerged from the same Reno circles as the people on the shoulder that morning. Isacc Anthony Pedroza, 39, of Reno, was charged in Lassen County with two counts of murder in connection with the deaths, along with an allegation of personally discharging a firearm and a charge related to transporting an assault weapon. He was arraigned in Lassen Superior Court, entered a not guilty plea, and a further court date was set for December 17, 2025, as the case moved into its next phase.
By the latest public updates, the investigation remained active, with officials limiting what they would say about motive and the sequence of actions before the shooting began. Authorities continued to ask witnesses and anyone with information to contact CHP’s Quincy office, while the criminal proceedings against Pedroza proceeded in open court—leaving the answers about why Browne and his son ended up in that fateful roadside standoff to be filled in by the ongoing investigation and future hearings.
