RedactedNarrative: At 1337 hours on July 4th, I was contacted by Sgt. with Charlton County S.O. in reference to a boating accident near the Camp Pinkney Boat Landing on the St. Marys River.  At the same time, Sgt. had received information on the same call from Capt. with Charlton S.O.  Sgt. advised me to be in route from our location at Dixon WMA and he would make contact with Cpl. and Rgr. who were also nearby at the Dixon WMA shooting range and they would all be in route shortly thereafter.
  
  I notified GSP of the incident and was shown 10-76 at 1341 hours and arrived on scene at 1417 hours.  On scene at the boat landing, I made contact with Subject1 who advised me that two subjects involved were still on scene, who had refused treatment by EMS or transport to a medical facility.  
  
  Two subjects had been transported to UF Health by EMS in Jacksonville, FL, Subject2 with leg injuries and Subject3 who had no obvious injuries.  Two other subjects were being transported by EMS to Southeast Georgia Health System (SGHS) Hospital in St. Marys, GA, Subject4 with complaint of severe pain and Subject5 with a laceration to his right arm and abrasions on his head.  Subject1 advised me that the male subject in route to SGHS had been identified as the operator.  I contacted Sgt. by phone and was advised to leave the scene, due to Sgt. close proximity and since other LEO's had secured the area and go to SGHS Hospital to locate the boat operator.
  
  At the hospital, I was able to locate the operator, Subject5.  During my initial encounter with him, I noticed he seemed shakened and nervous, but I did not observe any obvious signs of impairment or smell the odor of alcohol on his person.  He had received a laceration to his right arm and abrasions to the top of his head when the vessel ran aground and received treatment from EMS at the scene, but had refused any further treatment at the hospital.  I asked him if he would allow me to conduct a series of field sobriety exercises to determine if he was impaired and he stated sure.  I completed a BUI screening interview form and did not observe any signs of impairment.
  
  I asked Subject5 to explain the accident to me, beginning with what they were doing just before it happened.  He stated they were heading west on the river toward Camp Pinkney Boat Landing in a Ski Natique, registration of FL6447EU.  As they came around a bend in the river, they met another vessel that was towing a wake boarder.  He stated that he moved toward the bank on his right as they drove past the other vessel.  After that, he stated that his brother began to walk from the bow of the vessel to the stern on the port side of the boat.  As his brother reached the back of the vessel, Subject5 stated that he looked over his left shoulder to see where his brother was and as he looked back forward, the vessel ran aground.  I asked him if he felt the boat move unexpectedly or if there were any problems with the boat that would have caused him to lose control and he stated no.  He also completed a written statement a short time later that matched my interview with him.
  
  I then spoke with the operator's wife, Subject4, who was receiving medical attention for neck, shoulder, and lower back pain.  When asked to tell me what she observed, she stated that she was sitting in the rear of the vessel with her head laid back and eyes closed due to a headache.  She stated she only realized what had happened at the point of impact when she was thrown in the floor of the vessel.
  
  I then returned to the scene to obtain photos of the vessel.  Sgt. had spoken with a witness at the boat landing who provided us with a written statement to what he observed.