Victim left boat voluntarily after vessel was stopped to allow passengers to swim. Victim dove into water without a lifejacket and immediately showed that he was in distress.

 Victims granddaughter swam to him and realized that he was unconscious and not breathing. They had also drifted about 50 feet from the boat and could not get victim on board immediately. The other occupants onboard also did not know how to operate the vessel  and blew the emergency whistle and called 911 for help. A good samaritan came by on a PWC and assisted in getting the persons in the water to the boat. The victim was pronounced deceased by first responders.
Cross Lake
Lysander