I feel like Kenny went soft. NOTHING up to that point gave me the impression that Kenny was going to change sides all of a sudden. (This obviously only applies to if you saved Ben in the Bell tower, which most did) When Ben fell from the balcony and then inevitably died alive why didnt Kenny just shoot him and escape with Lee? Am I missing something? I know that Kenny wanted to right the ship with Ben and it was more or less just to add to the plot and make it more dramatic and emotional but that was out of character for Kenny.
Once again I realize this was what, in kennys mind, would have justified him but there was ample time to mercifully kill Ben then leave. He even just said before in the house that its NEVER the right choice to off yourself.