"“When Mr. Murphy first saw the bear it was running down a hill toward the other hikers,” Holden said. “He yelled, ‘Bear!’ to warn them, and as soon as he yelled, the bear turned and came straight at him.”

Murphy first discharged his bear spray using his left hand, and when that didn’t stop the animal, fired with the .357 in his right hand, according to Holden."

http://www.spokesman.com/blogs/outdoors/2014/oct/15/glacier-park-grizzly-shooter-case-dismissed/