Rescue workers suspended their search on Thursday for an Alabama shipyard worker who was thrown into the Mobile River by strong winds that also caused a Carnival Corp cruise ship to break loose from its moorings. The U.S. Coast Guard called off the search for 64-year-old John "Buster" Johnson after about 15 hours of looking for him, said Petty Officer Amber Menden. Johnson, an employee in BAE Systems PlcÂ’s shipbuilding branch, and another man were inside a guard shack that was blown into the river on Wednesday by high winds. The other man was rescued and treated for mild hypothermia, authorities said.