Jeff Guinn is a former journalist who has won national, regional and state awards for investigative reporting, feature writing, and literary criticism.

Guinn is also the bestselling author of numerous works of fiction and nonfiction including, but not limited to: Go Down Together: The True Untold Story of Bonnie and Clyde (which was a finalist for an Edgar Award in 2010); The Last Gunfight: The Real Story of the Shootout at the O.K. Corral - and How It Changed the West; Manson: The Life and Times of Charles Manson; and The Road to Jonestown: Jim Jones and Peoples Temple.

Jeff Guinn is a member of the Texas Institute of Letters, and the Texas Literary Hall of Fame. He appears as an expert guest in documentaries and on television programs on a variety of topics.

Guinn lives in Fort Worth, Texas.