RedactedNarrative: ON 06/26/2016 AT APPROXIMATELY 12:12 PM VESSEL 1(PWC) WAS FOLLOWING VESSEL 2 (PWC) ON NORRIS LAKE.  VESSEL 2 EITHER TURNED OR STOPPED AND VESSEL 1 RAN INTO VESSEL 2 ON ITS STARBOARD SIDE.  OPERATOR OF VESSEL 2 WAS AIR LIFTED TO UT HOSPITAL WITH LEG INJURIES.  OPERATOR 1 WAS UNINJURED. OPERATOR 2 DIED AFTER SEVERAL WEEKS IN THE HOSPITAL.