RedactedNarrative: Victim was in his boat fishing.  The witness was Victim's nephew and was fishing close by on the bank.  The witness heard a splash and saw the victim in the water struggling.  The victim did several back strokes and came up out the water slightly and then went underwater and did not resurface.  After a moment the witness ran up to a house to get an address for the location for 911.  Approx. 16 minutes had passed during this activity.  Vic. recovered next day by SCDNR dive team.