RedactedNarrative: Victim was fishing in kayak on the river.  There was a tube attached to the kayak with the victims son and niece on board.  Son and niece got out of tube to swim and niece got caught in current.  Victim jumped out of kayak to save niece.  He gave her his PFD and got her to the bank.  The victim was wearing fishing waders and went underwater.  He never resurfaced.