A man killed seven people at two landscaping nurseries in Half Moon Bay, San Mateo County, south of San Francisco, on Monday.
The shooter was believed to be a worker at either one or both locations and the victims were also believed to be workers, San Mateo County Sheriff Christina Corpus said.
She said an eighth person was in critical condition at Stanford Medical Center.
The suspect was identified as Chunli Zhao, a 67-year-old Half Moon Bay resident, the sheriff’s office said. He is in custody and cooperating.
The two locations are about a mile away from each other, the sheriff said. Law enforcement does not have a motive for the shooting.
Four victims were found at the first location dead of gunshot wounds, with a fifth victim also wounded. Three more victims were found at the second location shortly thereafter.
Approximately 4:40 p.m., Zhao was found in his vehicle at the Half Moon Bay Police Substation by the Sheriff’s Office. A semiautomatic handgun was found in the vehicle. The sheriff’s office said Zhao acted alone and there is no threat to the public.
This is a horrific incident, one that no one could have imagined would occur in San Mateo County,” said San Mateo County Board of Supervisors President David Pine.
The shooting comes less than 48 hours after a gunman killed 11 and wounded nine at a Chinese-owned ballroom dance studio in Monterey Park, a mostly Asian American suburb of Los Angeles. Authorities do not have a motive for the shooting, which involved a 72-year-old Asian man.