Question: Helter Skelter is a true crime book, released in which year, by Curt Gentry and Vincent Bugliosi, an American attorney and "New York Times" bestselling author?
Sentence (from "Helter Skelter (book)"): The book presents his firsthand account of the cases of Manson, Susan Atkins, Patricia Krenwinkel, and other members of the self-described Manson Family.
Relevant evidence: No