Original sentence: Cain relied on historical records of the massacre depicted in the film, exerpts from speeches by Brigham Young, and the signed confession of John D.The film is considered controversial by devout Mormons because Mormon leaders have never admitted to any culpability in the attack
Edited sentence: Cain claims to have relied on "historical records" of the massacre depicted in the film, dialog purportedly taken from speeches by Brigham Young, and the signed "confession" of John D.The film is considered controversial, with the historical accuracy and the impartiality of many of its source being disputed