Bay Area/ Oakland

Contra Costa Sheriff's Office Probes Suspected Homicide in Concord After Welfare Check Reveals One Dead, Three Injured

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Published on December 19, 2025
Contra Costa Sheriff's Office Probes Suspected Homicide in Concord After Welfare Check Reveals One Dead, Three InjuredSource: Google Street View

A tragic scene unfurled this week in the Contra Costa community when a welfare check led to the discovery of a man's death, an incident now scrutinized by the Contra Costa Sheriff’s Office as a homicide. Hoodline reports deputies arrived at the scene on the 5100 block of Laurel Drive in unincorporated Concord at 8:04 AM on Monday, where a resident, later identified as 38-year-old Antonio Valdez of Antioch, was found dead.

Adding to the devastation, three other individuals were discovered with injuries at the same location. They were promptly transported to a hospital for care. In a post by the Contra Costa Sheriff’s Office, authorities specified that the altercation began as a family dispute that escalated out of control.

Investigators are requesting the public's involvement, those with any details that could lead to a better understanding of this case are encouraged to contact the Investigation Division at (925) 313-2600, or for those wishing to ensure their anonymity could provide their insights, tips can be emailed to [email protected] or might also leave an anonymous voice message at (866) 846-3592.