Contra Costa DA clears officers in Antioch Police shooting death of David Wali Bahrami

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office
Martinez, CA – The Contra Costa County District Attorney’s Office (CCCDAO) issued a public report on a use of force incident in Antioch that resulted in the shooting death of David Wali Bahrami on June 30th, 2025, and finds the officers acted in reasonable self-defense/defense of others.
When a law enforcement officer or civilian is shot, killed or dies during an interaction involving a Contra Costa County police agency, the District Attorney’s Office launches an independent investigation. When no criminal charges are filed, the District Attorney’s Office will publish a public report detailing the facts and explaining the legal reasoning for this decision.
District Attorney Diana Becton said, “Transparency and accountability are fundamental to maintaining public trust. When a fatal incident occurs, my office is committed to conducting a comprehensive, independent investigation and sharing our findings with the community in a detailed public report.”

As previously reported, at approximately 6:16 am on June 30th, 2025, Antioch Police Department Dispatch received multiple 911 calls from David Bahrami, who lived with his family in Antioch and had a history of mental illness. He told dispatch he was about to kill someone, gave his address, and hung up the phone.
Multiple Antioch Police Officers staged nearby and called Bahrami to open a line of communication and to de-escalate the situation. At approximately 7:40 am, he threatened to kill his neighbor if officers did not come to his house. As a result, officers asked him to come outside to draw him away from family members inside the home.
Emerging from his residence, Bahrami walked toward the officers’ location approximately four houses away. Officers ordered him to stop and get on his knees, but instead he pulled out a large kitchen knife from his waistband and began running toward them. One officer fired a single less lethal round, which had no effect.
Bahrami continued running in a semi-circular path, then changed course and ran toward the police with the knife in his hand. When he was approximately 15–20 feet away, officers discharged their firearms to prevent themselves from potentially suffering great bodily injury or death from an imminent knife attack. He sustained multiple gunshot injuries and fell to the ground with the knife still in his hand. Officers immediately began administering medical aid, but Bahrami died at the scene.
During this encounter, responding officers repeatedly attempted de-escalation tactics by staging nearby and establishing communication with Bahrami. When confronted with an armed individual, Antioch officers elected to use less-lethal force. Officers resorted to lethal force only when Bahrami continued to wield his knife in direct proximity to the officers. Under the applicable legal standards, the District Attorney’s Office has determined that the officers acted in lawful self-defense/defense of others.
About the Report
The report is the final step in the CCCDAO investigation of the Antioch Police Department’s officer involved fatal incident of David Wali BAHRAMI on June 30th, 2025. The CCCDAO and every law enforcement agency in Contra Costa County follows the Law Enforcement Involved Fatal Incident Protocol (“the Protocol”)2 when investigating incidents where officers or civilians are shot, killed, or die during an encounter with law enforcement. Under the Protocol, the CCCDAO investigates all in-custody deaths in Contra Costa County for the purpose of making an independent determination of criminal liability. The sole purpose of the District Attorney investigation is to determine if there is proof beyond a reasonable doubt that an individual involved in the law enforcement involved fatality committed a crime.
Pursuant to the Protocol, immediately after an in-custody death, the involved law enforcement agency is required to notify the appropriate district attorney personnel. Once notified, trained and experienced members of the District Attorney’s Office respond to the scene and begin the criminal investigation. In addition, criminal investigators from the law enforcement agency involved in the incident and from the jurisdiction where the incident occurred, if different, respond to the scene as well. It is important to note that although these investigations happen simultaneously, each agency conducts its own independent investigation.
As part of the criminal investigation, law enforcement officers and civilians who witnessed the incident may be interviewed. Evidence is collected at the scene and may be submitted to the county crime lab for testing and analysis, in addition to any other relevant investigative work necessary to complete the investigation. The Contra Costa County Sheriff’s Office Crime Lab responds to every incident and is responsible for evidence collection of all in-custody deaths.
During the course of the criminal investigation, an officer or deputy has the right to be represented by an attorney. They may voluntarily choose to provide a statement, physical evidence, or other relevant information during the criminal and administrative investigations. Under the law, neither an officer nor civilian can be compelled to give a statement as part of a criminal investigation. However, an officer may be compelled to provide a statement during the law enforcement agency’s administrative investigation only.
The report includes a timeline of the actions of Bahrami and each officer. Witnesses included Bahrami’s sister, brother, father and mother.
A copy of the report has been sent to the Antioch Police Department, the California Department of Justice and is available to the public on the Contra Costa District Attorney’s website. (WARNING: The report contains graphic images)
View critical incident video in English – https://youtu.be/2cxJ7Z1izMM (WARNING: Graphic scenes of shooting and language). Español – https://youtu.be/EI028-WqUHk
Allen D. Payton contributed to this report.
the attachments to this post:
Davis Bahrami in street & with knife 06-30-25 CCD & APD logos


























