RedactedNarrative: UNIT 1 WAS TAKING ON WATER AND WOULD NOT START.  UNIT 2 SAW UNIT 1 AND BEGAN ASSISTING BY TOWING UNIT 1.  UNIT 1 CONTINUED TO TAKE ON WATER AND BEGAN SINKING.  THE OCCUPANTS OF UNIT 1 JUMPED OVERBOARD AS THE VESSEL CAPSIZED.  UNIT 1 OCCUPANTS WERE RESCUED BY UNIT 2 AND ANOTHER VESSEL.