Mention personal revelation, and responses can range from conversion to the choice of an airline seat. But what happens when personal revelation directs a Mormon polygamist to take the life of his sister-in-law and her infant daughter? And what might Joseph Smith and Brigham Young have to do with it? In his best-selling book Under the Banner of Heaven, author Jon Krakauer suggests these murders would not have occurred outside the unique history and doctrinal framework of Mormonism.

David Hunter, Sage Johns, Levi S. Peterson