A Bay Area man charged last year with murdering his wife and mother-in-law is now being charged in a 2024 Los Angeles County murder, with his mistress connected to all three killings, prosecutors said.
Howard Wang, 43, was arrested on Sept. 19, 2025, a day after his wife, Linlin Guo, and mother-in-law, Beimin Cheng, were found dead in Wang’s Walnut Creek home. Police said Wang had slashed their throats and concocted a story about arriving home and shooting at a fleeing intruder responsible for the killings. Sources told CBS News Bay Area another adult and two children were inside the home at the time, but they were not hurt
On Sept. 30, 2025, 45-year-old Yan Wang, who is not related to Howard Wang, was arrested and charged with being an accessory after the fact. The Contra Costa District Attorney’s Office said Yan Wang was Howard Wang’s mistress at the time of the murders and attempted to help him avoid arrest. Prosecutors allege that on the day of the murders, Yan Wang destroyed cellphones to prevent evidence from being produced, and broke into the home of Howard Wang and Linlin Guo the day after the murders to steal other evidence…