RedactedNarrative: The Operator of Vessel 1 backed his tow vehicle down the ramp in an attempt to retrieve Vessel 1 from the water.  A person at a nearby residence heard someone call for help, looked and didn't see anyone in the vessel or in the water, and subsequently called 911.  Emergency personnel arrived on scene to find Vessel 1 on the east shoreline with no one in or around Vessel 1.  Watercraft Officers arrived on scene a short time later and located the Victim with side scan sonar approximately 30 yards from shore. 
  
  Video footage was obtained from a maintenance building at the top of the ramp showing the Operator backing the tow vehicle down the ramp.  While backing the tow vehicle down the ramp, Vessel 1 starts to drift away from the dock.  The video then has a 5-minute pause.  The video just prior to the pause shows the Victim putting the tow vehicle into park in close proximity to the dock, and when the video starts again it shows the tow vehicle's driver door open and Vessel 1 approximately 50-75 yards east of the ramp with the Victim nowhere in sight.  When the Victim put the tow vehicle into park, Vessel 1 was a very short distance from the dock.  It is unknown if the Victim attempted to jump onto Vessel 1 and missed, landing in the water; attempted to jump onto Vessel 1, landed, but fell off; or if the Victim swam/waded toward Vessel 1 and was unable to pull himself up onto the vessel.  The Victim's shoes, wallet, and cell phone were found in the tow vehicle in a manner that did not indicate any type of urgency (neatly placed on the passenger seat).  The keys were found still in the ignition of the tow vehicle. 
  
  The Coroner's preliminary autopsy report indicated drowning as the primary cause of death.  Still awaiting final autopsy report and toxicology.