Victim was holding onto the ladder off the back of the pontoon boat and without saying anything just let go and went underwater.  An initial search by wife and friends revealed that Victim was missing and apparently drowned. 911 was called, responders arrived, began securing the scene and dragging ops began.  Victim's body recovered the following morning at approximately 0630 on 7/29/12 by Jackson CO R/S.  MC Corner announched Time of Death:  0630 on 7/29/12 with Cause of Death:Natural Cause (medical  condition; likely Heart attack) based on medical history and recent symptoms.