Suspect questioned over northern California shootings that left seven dead

Chunli Zhao, 67, was arrested after incidents at two locations in coastal community of Half Moon Bay

Investigators were on Tuesday questioning a man accused of killing seven people in an agricultural region in northern California, the state’s third deadly mass shooting in little more than a week.

Police say 67-year-old Chunli Zhao shot dead four and wounded one more on Monday afternoon at a mushroom farm in Half Moon Bay, a coastal community 30 miles south of San Francisco.