The Half Moon Bay mushroom farm worker
suspected of killing seven co-workers
in a fit of workplace rage had previously been accused of threatening to split another co-worker’s head open with a knife and trying to suffocate the man a decade ago at another Bay Area job, according to court records obtained by The Chronicle.
In 2013, Yingjiu Wang filed for a temporary restraining order against 66-year-old Chunli Zhao, telling a judge his roommate and co-worker at a San Jose restaurant had physically assaulted him and made death threats days earlier. A judge granted the order, which is no longer in effect. Efforts to reach Wang were not immediately successful.