Are you watching ‘American Primeval’? Let us explain a key moment: the Mountain Meadows Massacre.
It remains Mormonism’s 9/11 — the bloody day on Sept. 11, 1857, when militia members of the faith slaughtered a wagon train of emigrants in southern Utah.
(Mark Eddington | The Salt Lake Tribune) The memorial at the site of the Mountain Meadows Massacre in southern Utah. The first episode of "American Primeval" depicts the 1857 massacre.