Driver from Morgan Hill, passenger from Oakland

By Antioch Police Department

Sunday night, Sept. 7, 2025, the Antioch Police Department received multiple calls about a sideshow at the Antioch Marina and when officers arrived, they saw a Lexus doing donuts in the boat launch parking lot.

According to Lt. Joe Njoroge, around 11:25 pm officers overheard the screeching of tires coming from the vicinity of the marina. The driver and passenger tried to exit quickly, but Officers Tryner and Drace looked inside the car and spotted something they shouldn’t have had, a gun.

The driver, Jose Martinez, 31-year-old out of Morgan Hill was arrested for VC 23103 – Reckless Driving. The passenger, Brian Gallegos Avina, 27-year-old male out of Oakland was arrested for: PC 25850(c)(6) – possession of a handgun when not the registered owner; PC 32310(a) – receiving a large-capacity magazine; PC 25850(a) – carrying a loaded firearm on a person or in a vehicle while in any public place; and PC 25400(a)(2) – carrying a concealed upon a person any pistol, revolver or other firearm.

The Lexus got a one-way tow out of the marina.

Thank you for working with us and reporting problems when you see them.

According to the Contra Costa County Sheriff’s Office, as of today, Thursday, September 10th, Avina is out of custody with no charges filed. No additional information from online searches could be found about Martinez.

Allen D. Payton contributed to this report.

the attachments to this post:

Lexus towed gun seized sideshow 09-07-25 APD

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