A 17-foot vessel was reported spinning out of control about 8 miles south of the harbor around noon Sunday.
One man, identified by the San Mateo County coroner's office as 74-year-old Fremont resident Dung Duc Nguyen, was found dead in the area of the boat. A second man, Tuan "Tom" Tran, was also believed to be on board but crews did not find him.
The boat was eventually recovered after it stopped spinning.
A search for Tran continued overnight and Monday morning before being suspended as of midday, according to the Coast Guard.
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