Under the Banner of Heaven: A Story of Violent Faith

Jon Krakauer

Jon Krakauer's literary reputation rests on insightful chronicles of lives conducted at the outer limits. In UNDER THE BANNER OF HEAVEN, he shifts his focus from extremes of physical adventure to extremes of religious belief within our own borders. At the core of his book is an appalling double murder committed by two Mormon fundamentalist brothers, Ron and Dan Lafferty, who insist they received a revelation from God commanding them to kill their blameless victims. Beginning with a meticulously-researched account of this "divinely inspired" crime, Krakauer constructs a multilayered, bone-chilling narrative of messianic delusion, savage violence, polygamy, and unyielding faith. Along the way, he uncovers a shadowy offshoot of America's fastest-growing religion and raises provocative questions about the nature of religious belief. Krakauer takes readers inside isolated communities in the American West, Canada, and Mexico, where some forty thousand Mormon fundamentalists believe the mainstream Mormon Church went unforgivably astray when it renounced polygamy. Defying both civil authorities and the Mormon establishment in Salt Lake City, the leaders of these outlaw sects are zealots who answer only to God.

True Crime & JusticeTrue Crime & Justice · medium confidenceTrue Crime & Justice81 signalsLlm Classifier: True Crime & Justice -> True Crime & JusticeOpen Library: Mormons, biography -> BiographyOpen Library: Religion & Spirituality -> ReligionReligion & Religious MovementsEvangelicalism & Christian Nationalism
Experimental book profileGenerated by GPT-5.4 nano · may contain inaccuracies

This is an unverified interpretation of the catalog description, offered as an opt-in discovery experiment—not as bibliographic fact.

  1. 01 Central figures

    • Ron Lafferty75%
    • Dan Lafferty75%
  2. 02 Central places

    None extracted with sufficient confidence.

    These suggestions did not meet the normal display threshold and are more likely to be wrong.

    • Salt Lake City70%
    • Canada45%
    • Mexico45%
  3. 03 Suggested argument

    No argument inferred with sufficient confidence.

    This suggestion did not meet the normal display threshold and is more likely to be wrong.

    Religious belief—specifically a messianic delusion tied to claimed revelation—can drive Mormon fundamentalist violence, with leaders rejecting civil authority and the mainstream Church when polygamy is renounced.

    Model confidence 55%

  4. 04 Reading orientation

    35 / 100 academic

    Serious trade

    An estimate of intended readership and scholarly apparatus—not quality or importance.

Confidence percentages are the model's own estimates. Profile confidence: 60%.