From this story in the Rapid City Journal:
_Talk about an unlucky elk. And a lucky lion. The two got together Saturday in Custer State Park as a helicopter crew was shooting sedation darts at cow elk to drug them so they could be handled in a research project. One elk hit by a dart staggered over into some vegetation to lie down. It never got up, thanks to the lion, which was waiting nearby.
_"It was a nice sunny day, and I guess that lion was sitting out there sunning itself when an elk staggers up and tips over," said Gary Brundige, resource manager in Custer State Park. "Well, what's any top-of-the-line predator going to do in a situation like that?" It killed the elk and prepared to have dinner. The action was over in a hurry. The helicopter crew made sure the elk was dead and moved on to the next one.
Someone needs to buy that mountain lion a lottery ticket...