Got a portion of the story from a co-worker of mine. It's his sisters nephew. Yes, he was with his girlfriend. He was going after a downed duck, but sounds like he took his waders off to retrieve it. Had stripped won to his underwear. The girlfriend saw the struggle and tried to go help, but before she got out to him, he was underwater and she couldn't make it out, so she went back to shore and called 911. Not sure if this is accurate, but what I was told. Sad deal for sure. Sometimes it's not the gun that is the most dangerous.
I hope more details come out. Right now all this speculation gives us more questions than answers.
Like, if he stripped down to get a duck, that leads me to believe it was too deep to wade. And he'd likely have to swim. So in that case:
1) Was the water cold? Hypothermia cold?
2) Did the waves get the best of him?
3) Was he actually not a very good swimmer and underestimated the distance?
I honestly want to know. As an avid waterfowler, any time something like this happens, I feel it's a learning experience for everyone else.