John R. Llewellyn wrote the book Polygamy's Rape of Rachael Strong. He is considered an expert on Mormon fundamentalism and polygamy because of his extensive background in investigating sex crimes when he was a Sherriff's Lieutenant in Salt Lake City, Utah.
Llewellyn also wrote the books: Polygamy Under Attack, Murder of a Prophet and A Teenager's Tears.
During his career as a Sherriff's Lieutenant John R. Llewellyn wrote an intelligence report on mass murderer, Ervil LeBaron. LeBaron ordered the execution of Doctor Rulon C. Allred who was the leader of Utah's second largest polygamist group. Llewellyn's first book Murder of a Prophet was about the case.
While Llewellyn was a deputy he researched the Mormon doctrine which led to his conversion to Church of Latter Day Saints and Mormon fundamentalism. When he retired from his job he became a member of the Apostolic United Brethren. Llewellyn dissociated himself from AUB after the leadership of it was changed.
John R. Llewellyn became an investigator for Virginia Hill in 1995 in attempt to recover civil 1.54 million dollars that was stolen from her by the AUB.
