A friend of the family drowned this past year on Lake Michigan while fishing. The guys on board said he was bringing in a fish when he just fell off the back and one of them jumped in, thought they had him, but lost him. It took over a month to find him and when they did the autopsy showed he had a seizure. When he fell in he took a breath and filled up with water, then he sunk like an anchor. My buddy said it happened so fast he didn't have time to react. Maybe the same story here??