The mistress of a Walnut Creek man charged with murdering his wife and mother-in-law earlier this month has been charged with helping to cover up the crimes and destroy evidence, prosecutors said Tuesday.
The killings happened on Sept. 18 at a home on Kelobra Court near Ygnacio Valley Road. Authorities said 43-year-old Howard Wang slashed the throats of his wife, Linlin Guo, and his mother-in-law, Beimin Cheng, and falsely claimed he arrived home and shot at a fleeing intruder responsible for the killings.
The Contra Costa County District Attorney’s Office said Tuesday in a press release that 45-year-old Yan Wang, who shares the same last name as the murder suspect but is not related, was charged with being an accessory after the fact. Yan Wang was in a romantic relationship with Howard Wang at the time of the murders, had knowledge of the crimes, and attempted to help him avoid arrest, the DA’s Office said…