UPDATE: According to WGMD, the Coast Guard has called off their search. The Examiner adds that rescue teams searched 895 nautical miles over 20 hours, but could not locate Delgado. A Washington, D.C. man is still missing after he was caught in a riptide in Ocean City, Maryland on Saturday. 250 people were caught in and rescued from riptides this weekend at the popular beach destination, where all swimmers were called out of the water…