In the 1950s, a young Indianapolis minister named Jim Jones preached a curious blend of the gospel and Marxism. His congregation was racially integrated, and he was a much-lauded leader in the contemporary civil rights movement.

In this riveting narrative, Jeff Guinn examines Jones’s life, from his extramarital affairs, drug use, and fraudulent faith healing to the fraught decision to move almost a thousand of his followers to a settlement in the jungles of Guyana in South America. Guinn provides stunning new details of the events leading to the fatal day in November, 1978 when more than nine hundred people died—including almost three hundred infants and children—after being ordered to swallow a cyanide-laced drink.

Guinn examined thousands of pages of FBI files on the case, including material released during the course of his research. He traveled to Jones’s Indiana hometown, where he uncovered fresh information from Jonestown survivors.