Look, this may have been a horrible part of history, and no one at all denies Mormons were involved, but no credible (or even slightly intelligent) historian argues that Brigham Young ordered the massacre. Historians argue to no end about whether Young was an "accessory-after-the-fact" but this movie stands alone in modern treatment of the massacre in blaming Young for ordering it. It may make a good movie, but it is bad history. What is the motive for impugning Young and other mormons who did not commit the tragedy?