Kerry O’Brien, Frank O’Brien, and William Gross, sailing from Mazatlan to Cabo San Lucas and San Diego, have been missing since April 4 when they left Mazatlan. The sailing vessel Ocean Bound was a 44-foot La Fitte. “Urgent marine information broadcasts have been issued over VHF radio requesting all mariners to keep a lookout for the missing persons and vessel,” the U.S. Coast Guard said.