a technological advance will chip away at cassidy's clever control that has kept him steps ahead of the law for well over a decade. >> i am foolish, which you have found out, but it is in my nature. and i can't change it. >> the bandits are so impressed with the photograph, each orders a specially made copy as a souvenir. photographer john swartz also thinks it's some of his best work. and he puts an enlargement of the photo in his shop window for all to admire, including a pinkerton agent on assignment in forth worth. >> they didn't know that it was going to be placed in the window of the establishment. they didn't know that it would be seen by a law enforcement officer, thereby giving butch's pursuers the one thing that they needed: a recent, accurate photo of the wild bunch.