RedactedNarrative: VESSEL 1 WAS PULLED NEXT TO SUBMERGED TREES TO CHECK FISHING/TROT LINES. THE VICTIM FELL OFF THE STARBOARD SIDE OF THE BOAT. HE HAD HIS LIFEVEST OVER HIS SHOULDER AND WHEN HE FELL, IT CAME OFF. HE RESURFACED BUT FAILED TO LOCATE THE VESSEL IN THE DARKNESS. HE SUBMERGED AND DID NOT RESURFACE AGAIN. ACCORDING TO THE OFFICER, OPERATOR ONE HAD BEEN DRINKING ALCOHOLIC BEVERAGES THROUGHOUT THE DAY.