What I find most interesting about this photo is that not only does Kerry not know how to hold the shotgun (note the thumb over the barrel), if he fired it in that position, he would probably be knocked on his butt. He needs to support himself against the kickback, and he, most assuredly, is not.
Good observations, thanks.
I had noticed he wrapped his hand around the barrel and blocked the sight.
I wondered if that would hurt his hand when it fires.
I hadn't noticed though that he is NOT at all preparing
for a kickback, and he WOULD fall backwards! good eye!!!