visitors after a french tourist was killed off the same beach just over two weeks ago. only 400 yards from where ian redman was attacked. officials thought the first incident was a fluke. they realize now that it wasn t. there s now a very strong coordinated and concerted effort by various agencies and people to try and do everything within their powers to locate the shark in the area and try to catch it. reporter: as the sun rose this morning, the island s most accomplished fisherman now turned shark hunter, darrell green, got in his boat. just off the beach where the attacks took place, he has laid a trap. 30 baited hooks. at the end of one line, he catches something. they just caught a shark. this one is actually harmless. it s a guitar shark. the fisherman says they re actually looking for a bull shark that he believes could be as big as 18 feet long. the fishermen out here for the last three days with no luck.