RedactedNarrative: On 02/10/2017 at approximately 17:30, a good-samaritan (on a vessel) identified a body floating in Tarpon Basin in Key Largo, FL. FWC Officers and USCG responded to the scene. Once on scene, FWC identified a 19' vessel against the treeline with no occupants and no damage. Victim was located approximately 100 yards away from the vessel also in the treeline. The vessel was searched and determined the vessel belonged to victim which was later confirmed by friends and family. Victim was transported by USCG to USCG Station Islamorada to be transported to the medical examiners office in Marathon, Florida. There were no evident signs of foul play or a collision.  Next of kin notification was made by Lt. to his wife at approximately 22:30. 
  
  For complete information please see Incident Summary Report Number ISR028126. The District 16 Medical Examiners Report determined the cause of death to be drowning.  Based upon the evidence, witness statements, interviews, and other information to date, how or why victim entered the water can only be speculated. However, it is important to note that there was no evidence that the vessel was involved in a collision, a sudden change in direction, and/or a sudden reduction in propulsion that would cause him to be ejected.   
  
  Victim had a history of seizures and was prescribed Phenytoin. Phenytoin is an anti-epileptic/anticonvulsant drug and is prescribed to help control seizures. According to the District 16 Medical Examiners Report, Victim had sub-therapeutic levels of Phenytoin in his system at the time of death allowing for the possibility of a break through seizure to occur. The report also noted there were no physical wounds such as bite marks on the tongue and inner mouth indicating Victim had a seizure, however, the absence of these wounds do not exclude a seizure from occurring. No evidence was discovered to indicate Victim attempted to re-board his vessel and self-rescue after entering the water
  