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HALF MOON BAY, Calif. — Seven people were killed in two related shootings Monday at a mushroom farm and a trucking firm in a coastal community south of San Francisco, and a suspect was in custody, officials said.
San Mateo County Board of Supervisors President Dave Pine says four people were killed at the farm and three at the trucking business on the outskirts of Half Moon Bay, a city about 30 miles south of San Francisco.
The police have arrested 67-year-old Chunli Zhao in connection with the shooting, Pine said.
Pine said the suspect worked for one of the businesses. He called the suspect a "disgruntled worker."
The shooting was the nation's sixth mass shooting this year — and followed the killing of 11 people late Saturday at a ballroom dance hall in Southern California.
The San Mateo County Sheriff's Office first received reports of a shooting just before 2:30 p.m. PST and found four people dead from gunshot wounds and a fifth injured person at the first scene. Shortly thereafter, officers found three more people dead from gunshot wounds at a second location about five miles away, Capt. Eamonn Allen said in a news release.
About two hours after first responding, a sheriff's deputy found the suspect, Zhao, in his car at a sheriff's station in Half Moon Bay. He was taken into custody and a weapon was found in his vehicle. The sheriff's department believes he acted alone, Allen said.
The office did not share any information about the connection between the two locations.
The motive for the shooting is not known, Allen said.
"We're still trying to understand exactly what happened and why, but it's just incredibly, incredibly tragic," said state Sen. Josh Becker, who represents the area and called it "a very close-knit" agricultural community.
Aerial television images showed police officers collecting evidence from a farm with dozens of greenhouses.
Half Moon Bay is a small coastal city with agricultural roots now home to about 12,000 people. The city and surrounding San Mateo County area is known for producing flowers as well as vegetables like brussell sprouts. The county allows cannabis farming in certain areas.
It's a majority white community and about 5% of the population is Asian, according to census data.
"We are sickened by today's tragedy in Half Moon Bay," Pine said. "We have not even had time to grieve for those lost in the terrible shooting in Monterey Park. Gun violence must stop."
California Gov. Gavin Newsom tweeted that he was "at the hospital meeting with victims of a mass shooting when I get pulled away to be briefed about another shooting. This time in Half Moon Bay. Tragedy upon tragedy."