@boulderjohn
Then you have the trifecta fatalities that meet all of your categories. The one I have always wondered about is the solo narcoleptic cave diver from the 2005 DAN Report:
This 35-year-old male was a certified cave diver with one year of cave diving experience. He was morbidly obese and had a history of narcolepsy. Diving without a buddy, the diver made a shore-entry dive into a cave system in a freshwater spring. He used a 34 percent nitrox mixture as a breathing gas, and the dive profile was planned to 108 feet (33 meters) for 20 minutes. The diver’s body was recovered in a restrictive area within the cave where the current was brisk. From the position of the body, it appeared that he had been attempting to exit the cave system. The autopsy was consistent with drowning, though there was still breathing gas available in the tank.
Then you have the trifecta fatalities that meet all of your categories. The one I have always wondered about is the solo narcoleptic cave diver from the 2005 DAN Report:
This 35-year-old male was a certified cave diver with one year of cave diving experience. He was morbidly obese and had a history of narcolepsy. Diving without a buddy, the diver made a shore-entry dive into a cave system in a freshwater spring. He used a 34 percent nitrox mixture as a breathing gas, and the dive profile was planned to 108 feet (33 meters) for 20 minutes. The diver’s body was recovered in a restrictive area within the cave where the current was brisk. From the position of the body, it appeared that he had been attempting to exit the cave system. The autopsy was consistent with drowning, though there was still breathing gas available in the tank.