A body found in the water near the Antioch Bridge appears to be that of a missing teen-ager who disappeared with a friend while fishing last month. The Contra Costa County sheriff´s deputies believe the body found yesterday is 18-year-old Adam Batchelor of Antioch. Batchelor disappeared April 28th after a fishing trip with friends. The next day, the Coast Guard found the 12-foot aluminum boat he and 17-year-old Brandon Paschall of Oakley had been using. Paschall´s body was recovered earlier. An autopsy showed he drowned.