RedactedNarrative: On 8/31/17 at approx 6:40 pm I was notified of a Sig 4B (boating accident) near Sister's Creek and that Officers were responding to the location and that I was to head to UF Health Northside Hospital in reference to a possible drowning. Early information was pretty slim and upon my arrival at the hospital I received the initial reports that this was a single vessel accident and the operator fell overboard. 
  
  	The victim's son told me that earlier in the day he met up with his father to go fishing and after wrapping up their day, Victim’s son backed the truck down the ramp at Joe Carrlucci Boat Ramp and due to the strong current, Victim was not happy with the way his boat was riding on the bunks of his trailer so he asked that Victim’s son take the truck and trailer over to Jim King boat ramp where the currents are slightly less making it easier to load the boat on the trailer. 
  
  	In the area subject was in his vessel with two other occupants, heading south in the ICW in the area of Sister's creek, north of the Heckscher Drive bridge. He noticed a vessel making continuous turns with a young child behind the wheel looking panicked. The young kid then found an air horn in the runaway vessel and started blowing it. subject thought that something was wrong and headed towards the vessel. He came across a man underwater with only the top of his head bobbing in the water and immediately pulled the man onboard and notified rescue. 
  
  	Jacksonville Fire and Rescue responded and transported Victim to UF Health and when I arrived at the hospital I spoke to family members and the initial witness and at this time I am unable to determine what caused victim to fall overboard. When I left the hospital he had a pulse and was breathing with the aid of advanced lifesupport. Nurse was tending him and advised that he had no brain function and no involuntary reactions. Officer (acting supervisor) made contact with the acting captain LT, updating him of the situation and with the condition of the victim, made a request that an investigator be made aware of the situation.  Individual was admitted to the hospital for water inhalation / near drowning. Victim was unresponsive and no brain function