I understand EXACTLY what it is
The "Hero" was NOT himself directly threatened
He CHOSE to place himself in harms way BIG difference.
There is NO direct evidence that the perp WAS going to shoot the victim in question.
Fair enough we are told that it was HIS choice
He knew the dangers and chose to follow a path -- INTO danger
Whatever happened AFTER that choice was of his OWN making.
Therefore lets not feel sorry for the guy he did what he wanted to -- he must accept the consequences.