Under the Banner of Heaven Author:Jon Krakauer Under the Banner of Heaven: A Story of Violent Faith is an investigative non-fiction book by best-selling author Jon Krakauer, first published in July 2003. It is a juxtaposition of two stories: the origin and evolution of The Church of Jesus Christ of Latter-day Saints (Mormons), and a modern double murder committed in the name of God ... more »by brothers Ron and Dan Lafferty, who subscribed to a fundamentalist version of Mormonism. The Laffertys were formerly members of a very small splinter group called the School of the Prophets, led by a man named Robert C. Crossfield (also known by his prophet name Onias).« less