Updated 3 p.m. Sunday, Jan. 29: Chunli Zhao, the man accused of killing seven people at two farms, said he was angered after his boss attempted to charge him $100 for damaged construction equipment, San Mateo County District Attorney Steve Wagstaffe told the Mercury News.
Wagstaffe also confirmed previous reporting by NBC Bay Area that Zhao confronted his boss and a co-worker, whom he blamed for a workplace accident, just before the shooting. The co-worker and boss whom Zhao confronted were reportedly among those shot.
Original story, Thursday, Jan. 26: Authorities are currently investigating whether the mass shooting in which seven agricultural workers were killed in Half Moon Bay on Monday was an instance of “workplace violence.”
Workplace violence, defined by the U.S. government as any act or threat of violence, harassment, intimidation or other threatening behavior on a work site, is one of the leading causes of occupational deaths in the United States.