Yeah, Cheney did not let Harry Whittington to bleed to death.
Ok, lets use the Chappaquidick scenario against this episode.
First, Cheney and Harry were drinking all morning and afternoon...telling war stories...and gossiping about democrats. After a while, they wandered out into a field...where Cheney accidentally fired off a round into Harry. Cheney stood there by his buddy...for at least an hour...wondering if he save him or just let him bleed to death in the field. Eventually, Cheney walked back to the house...boozed up some more and told the secret service guys of what happened. They all wondered back to the field, and kept looking at Harry who was very much alive. Finally, as dark came....someone called the local ambulance, and they carried him to the hospital. Cheney drank all night and finally gave a explanation about the whole episode the next day to local cops who promised to cover up the episode.
Thats about how it would have happened.