By Contra Costa County Sheriff’s Office
The Contra Costa Sheriff’s Office continues to investigate a homicide that occurred on Monday, December 15, 2025, at 8:04 a.m. at a home on the 5100 block Laurel Drive in unincorporated Concord.
Valley Station deputy sheriffs responded to a welfare check and found a resident of the home deceased on the property. Detectives believe the incident began as a domestic issue when a family dispute escalated into an altercation. Three others who suffered from injuries were transported to a local hospital.
The victim is identified as 38-year-old Antonio Valdez of Antioch. A person in the home who suffered injuries remains in the hospital.
The Investigation Division Homicide Unit and Crime Lab responded to the scene. Detectives believe the incident began as a domestic issue when a family dispute escalated into an altercation. There are no outstanding suspects and no threat to the public.
The investigation is ongoing. Anyone with any information on this incident is asked to contact the Investigation Division at (925) 313-2600. For any tips, email: tips@so.cccounty.us or call (866) 846-3592 to leave an anonymous voice message.
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