Under The Banner Of Heaven by Jon Krakauer
The book delves into the disturbing world of religious extremism within certain sects of the Mormon faith, particularly focusing on a brutal double murder committed by two brothers who believed they were commanded by God to kill. Through meticulous research and interviews, the narrative explores the history of the Church of Jesus Christ of Latter-day Saints and examines how its teachings have been interpreted and misused by fundamentalist offshoots. The author intertwines the true crime investigation with a broader discussion on the nature of faith and the potent influence of religious belief on human behavior.