RedactedNarrative: On 06/09/2019 at approximately 1015 hours, subject noticed an object floating in the water near his anchored live-aboard vessel (FL9787PM) located in Boot Key Harbor of Marathon, Florida.  Subject assumed the object was debris and approximately 15 minutes later, as the object floated closer to his vessel, he realized it was the body of a nearby neighbor also inhabiting a live-aboard vessel (DO986096) (V-1). Subject jumped in the water to help Victim but realized he had been face down in the water for approximately 20 minutes. Subject grabbed Victim and secured him by his right ankle to an anchor line of another nearby anchored vessel (FL4225AL). Subject contacted the authorities and awaited their arrival. 
  
  The District 16 Medical Examiners Report determined the cause of death to be a result of Hypertensive Arteriosclerotic Cardiovascular Disease with Terminal Submersion in Water as a contributory factor. Based upon the evidence, witness statements, interviews, and other information to date, how or why victim entered the water can only be speculated. 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 victim to be ejected. There was no evidence of foul play. No evidence was discovered to indicate victim attempted to re-board his vessel and self-rescue after entering the water.
  
  Please see ISR063119 for complete investigation. victim died as a result of Hypertensive Arteriosclerotic Cardiovascular Disease with Terminal Submersion in Water as a contributory factor.
  