Concord Double-Homicide Suspect Found Dead At Martinez Detention Facility

On Thursday, January 8, 2026, at about 5:38a.m., Contra Costa Health medical staff at the Martinez Detention Facility responded to a housing module in answer to a report of an inmate inflicting self-harm. The inmate, Kirk Richardson, 61, of Concord, had sustained injuries to his head as a result of deliberate contact with a hard…

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