As a safe boating instructor, I get this stuff from the FWC:
Okaloosa County, Aug. 11, 2012
According to witnesses, the vessel the victim was riding in abruptly listed to one side, spun counter-clockwise, and nearly flipped ejecting everyone on board. The witnesses responded to the area and immediately retrieved three of the occupants from the water. The forth occupant was missing and search and rescue efforts were initiated. The victim was found later that same evening.
2012 fatalities through 8/13/12 – 35 2011 fatalities through 8/13/11 – 36