 SPOILER: As extraordinary as the scene is in which Wyatt kills Curly  Bill Brocius in the creek, it it true. During the shootout in the  creek when Wyatt kills Curly Bill, the next person he shoots is  Johnny Barnes (the cowboy who yells "JESUS CHRIST!!"). As in real  life, Wyatt shoots Barnes in the stomach. However, Barnes was not  killed on site. He managed to escaped and died in a farmhouse.  However, before dying, he told the story of how Wyatt REALLY did  walk into a hail of Curly Bills gunfire unscathed and walked right  up to Bill and shot him point blank with both barrels of a  double