The “devil is in the details” ... so I would not be dismissing this ...
I am not necessarily dismissing this just observing there is an absence of corroborating evidence such as surveillance video. If the shoot went down as described it should be available insomuch as it sounds to be clean. There also should be statements from involved LE. Live Leak would be the most likely place to host the video. They even had post action video taken by the Taliban after Operation Redwing.
I just would not like this to be taken by the left and used to ridicule Conservatives if this is found to be a fabrication. The case of the child who claimed to have visited Heaven then ended up recanting his story is good example.