Authorities say a 69-year-old man killed his estranged wife in their home in the exclusive gated Blackhawk community outside nearby Danville over the weekend.
Contra Costa County sheriff's deputies were called to the home Sunday afternoon and found the body of 69-year-old Linda Tercheria there, according to the San Francisco Chronicle.
Her husband, John Tercheria, was booked Monday morning on suspicion of murder at the Martinez Detention Facility. Sheriff's spokesman Jimmy Lee says he was released later in the afternoon after posting $1 million bail.
Court records show Linda Tercheria had filed for separation in April 2015.
Lee says the county coroner's office determined that she died of blunt force head trauma.
It was not immediately known if John Tercheria has an attorney. A motive in the killing was not released. The case remains under investigation.