RedactedNarrative: V1 was rented by operator from Freedom Boat Club of Fort Pierce, where Operator and occupant are members. V1 and all occupants left from Fort Pierce City Marina.  V1 and occupants cruised northward, then south in the Indian River.  V1 called for assistance from TowboaUS to provide fuel to V1. V1, then obtained more fuel from Sundance Marine and continued south to a restaurant.  V1 departed the restaurant and was heading north in the Indian River near the Fort Pierce power plant.  
  
  They came under the power lines near Herman Bay Point and occupant asked operator to stop V1 so she could go swimming.  V1 stopped and was adrift (not anchored).  Occupant2 went for a swim with no PFD and she asked the operator to join her.  The operator voluntarily left V1 and went into the water with no PFD.  The other two occupants remained on V1. 
  
  Shortly after getting in the water, the operator appeared to be in distress. Occupant3 jumped into the water to assist the operator. Occupant took over as the operator maneuvering V1 and attempting to retrieve him out of the water.  The attempts were unsuccessful. USCG was hailed on channel 16 by V1 occupant.
  
  A Good Samaritan showed up on scene and assisted in getting Operator out of the water and onto the swim platform of V1.  USCG arrived and did CPR on Operator.  USCG vessel escorted V1 to the shoreline along Indian River Drive to meet St. Lucie County Fire Rescue Units.  The operator was transported to Lawnwood Regional Medical Center, where he was pronounced deceased.
  
  Occupant3 had bruises in various locations on body.  Occupant 3 told me this information. She cannot remember what caused the injury or when it was acquired.
  
  