RedactedNarrative: VESSEL 1 WAS TRAVELING NORTHEAST APPROX 1/8 OF A MILE NORTH AND APPROX 1/4 MILE EAST OF PELICAN ISLAND.  WINDS WERE GUSTING TO 28 MPH.  THE OPERATOR SLOWED THE VESSEL CAUSING WATER TO BREACH THE STERN OF THE BOAT.  AFTER VESSEL 1 TOOK ON WATER, VESSEL 1 SANK CAUSING ALL OCCUPANTS TO BE EJECTED.  PFD'S FLOATED TO THE SURFACE AND ALL OCCUPANTS USED ONE BUT DID NOT WEAR THEM PROPERLY.  OPERATOR AND PASSENGER 1 MADE IT TO SHORE AND WERE PICKED UP BY A PASSENGER VEHICLE.  VICTIM 1 WAS RECOVERED BY BOAT.  VICTIM 1 WAS INCOHERENT AT THE TIME OF BEING RECOVERED FROM THE WATER.  VICTIM 1 SUFFERED UPPER RESPIRATORY, HYPOTHERMIA INJURIES AND SHOCK.