RedactedNarrative: VICTIM WAS NOT WEARING A PFD WHILE HE WAS OPERATING A PWC ON LAKE ISLEWORTH IN ORANGE COUNTY. VICTIM MADE A 360 DEGREE TURN AND FELL OFF THE SKI. THE LANYARD WAS NOT ATTACHED TO VICTIM AS IT IDLED AWAY IN CIRCLES. VICTIM COULD NOT SWIM. HE SANK BELOW THE WATER BEFORE THE WITNESSES IN ANOTHER VESSEL COULD RESCUE HIM.