Update 11:00 p.m.: Authorities said late Friday night that after tracking the stolen sailboat for most of the day, they decided to confront the vessel when it took an unexpected turn south after reaching Monterey Bay. Coast Guard and FBI approached via boat and Maffei cooperated, allowing them to board the yacht.

Before a fisherman notified the Coast Guard that he spotted the vessel 50 miles off the coast of Half Moon Bay early Friday morning, authorities were reportedly conducting air searches in the region of the Sacramento Delta.

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