 A shark seemed swimming close to shore, and a woman bitten by a shark pulled to safety by good Samaritans who apply a tourniquet. One of four incidents on South Padre Island where beach goers were attacked by sharks on one of the nation's busiest beach days, the Fourth of July. Video from a Texas Department of Safety helicopter shows a shark close to the South Padre Island shore. It's not known if it was the shark that attacked. We just got out here to the beach and