Search Continues for Missing Carnival Cruise Passenger After Ship Returns to Miami Port

year-old Kevin McGrath was reported missing after failing to meet family for breakfast before ship docked in Miami.
McGrath was last seen in his cabin early Monday morning before scheduled return from cruise to Bimini, Bahamas.
Extensive searches on board ship and in waters near Miami port have not located McGrath.
Authorities say surveillance footage shows no evidence McGrath went overboard.
McGrath's mysterious disappearance mirrors recent incidents of passengers vanishing from cruise ships.