By Kristina Davis From The San Diego Union-Tribune SAN DIEGO—The man at the helm of a smuggling boat that capsized off Point Loma, ending in the deaths of three migrants, pleaded guilty in San Diego federal court Wednesday to his role in the tragedy. Antonio Hurtado, a 40-year-old U.S. citizen, pleaded guilty to felony charges of attempted human smuggling resulting in death and attempted human smuggling for financial gain relating to each of the migrants who died. The plea comes one month before the case was set to go to trial. Hurtado was trying to smuggle 32 migrants into the U.S. aboard his black 40-foot trawler-style boat, the Salty Lady, when the wreck occurred May 2 about 50 feet off Point Loma. It was mid-morning on a Sunday, and sightseers at Cabrillo National Monument and the tidepools below watched the boat capsize in horror. The journey had been problematic from …