A gunman killed 7 people in shootings in Half Moon Bay, California

A man killed seven people at two landscaping nurseries in Half Moon Bay in San Mateo County, south of San Francisco, on Monday, law enforcement said.

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.

An eighth person was at Stanford Medical Center in critical condition, she said.

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.