Martinez, California – A 43-year-old Walnut Creek resident was charged by the Contra Costa District Attorney’s Office in a double murder.
Howard Wang will be arraigned at 1:30 pm on September 23rd in Contra Costa Superior Court in Martinez for the murder of his wife Linlin Guo, and mother-in-law, Beimin Cheng. The murders occurred on September 18th, 2025, at the couple’s residence in Walnut Creek. The charges include special circumstances enhancements for multiple murders. If found guilty by a jury, Wang could be sentenced to life in prison without the possibility of parole.
Additional charges against Wang include making criminal threats of death and great bodily injury against Linlin Guo around August 31st, 2024, and preventing Linlin Guo from reporting a crime to law enforcement on January 7th, 2023.
Contra Costa District Attorney Diana Becton said, “This tragic case is a stark reminder of the devastating toll domestic violence takes — not only on the victims whose lives were lost, but on families and the community as a whole. Our office is committed to aggressively pursuing justice in this case.”
Case No. 01-25-03009 | The People of the State of California v. Howard Wang
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- Update: Arrest Made in Walnut Creek Double Homicide: The Walnut Creek Police announced the arrest of a 43-year-old man in connection with a double homicide that occurred Thursday night.On September 18, 2025, at approximately 11:45PM, Walnut Creek Police officers responded to a 911 call reporting a disturbance with possible gunfire in the 100 block of Kelobra Court. Upon arrival, officers discovered two adult women deceased inside the residence. Following the initial investigation, an adult male – Howard Wang, who was known to both victims – was taken into custody. He is currently booked at the Martinez Detention Facility and is being held without bail. At this time, investigators do not believe there are any outstanding suspects and there is no indication of an ongoing threat to public safety.
This investigation remains active, and no additional details are available for release.
- Arrested: Howard Wang (43 year old resident of Walnut Creek)
- Charges: 2 Counts – 187 P.C. Murder
The Walnut Creek Police Department would like to thank the Concord Police Department and the Contra Costa County Office of the Sheriff for their assistance in this investigation. Anyone with information about this incident is encouraged to contact the Walnut Creek Police Department at (925) 943-5844 or provide information anonymously through the tip line at (925) 943-5865.
- Walnut Creek Police Investigate Double Homicide
