I saw this video at the Harrisburg, PA sportsmen show Feb. 14, 2004. The word was that the lion had been suspected of killing some locals and one of the area game wardens went to check it out. The lion killed the warden and the horse he was riding on.
That was not a trophy hunt according to the outfitters. They were trying to rid the area of nuisance lion that started to like easy the pry of unsuspecting humans.

If you check out the slow motion portion real close you'll see a bullet hit the ground about 3 to 4 feet in front of the guys head that was knocked down.