
An after-midnight police call in Walnut Creek ended in gunfire last Thursday, when officers shot and killed a 46-year-old man who, they say, refused to drop an object that was later determined to be a pellet gun. He was pronounced dead at the scene in a residential neighborhood near Buena Vista and Alvarado avenues at about 12:10 AM. Family members who spoke with local reporters said he had long struggled with serious mental-health issues.
Police account of the shooting
In a news release, the Walnut Creek Police Department says officers were called at about 12:10 AM for reports of a man in dark clothing who was looking into homes and parked cars with a flashlight. When officers found someone matching that description, they say he was holding what appeared to be a firearm. According to the department, officers issued multiple commands for him to drop the weapon, and an officer-involved shooting occurred when he did not comply. Emergency personnel then performed life-saving measures, but the man died at the scene, the department said.
Identity and family reaction
The Contra Costa County Coroner's Division identified the man as 46-year-old Joaquin Pereyra, as reported by SFGATE. Relatives who spoke with local TV outlets used variations of his name and told reporters he had a long history of schizophrenia and had stopped taking his medication in recent months. His mother told local stations she does not blame the officers for the shooting but grieved what she described as a lack of options for people in crisis, saying she had spent years trying to get him help, according to reporting by ABC7.
Investigations underway
The Walnut Creek Police Department says the officers involved have been placed on administrative leave, and that the Contra Costa County District Attorney’s Office is running a parallel investigation under the Law Enforcement Involved Fatal Incident Protocol. The department also said body-worn camera footage from the encounter will be released at a later time, according to the department's news release.
Scene, neighbors and tips
Neighbors reported hearing multiple gunshots and seeing heavy police activity. Local TV crews and witnesses described a covered body and a large law-enforcement presence around 1907 Alvarado Avenue during the morning hours after the shooting, according to KTVU. Authorities have said the incident was isolated and that there is no ongoing threat to the public. Anyone with information is asked to contact the Walnut Creek Police Department at (925) 943-5844, or the anonymous tip line at (925) 943-5865, per reporting by SFGATE.
Why this matters locally
The fatal encounter is intensifying long-running questions about how Walnut Creek and other Bay Area agencies respond to mental-health crises. The city faced intense scrutiny after a 2019 officer-involved shooting of Miles Hall, a mentally ill resident, which spurred calls for non-police crisis-response options and policy changes, as documented by the San Francisco Chronicle.









