Question: Helter Skelter presented the firsthand account of the case of the murderer who was a part of whose "family"?

full_context: Document 1: George Spahn: George Spahn (February 11, 1889 – September 22, 1974) was a rancher who once owned the Spahn Ranch near Chatsworth, Los Angeles, California. Spahn (as did previous owner William S. Hart) rented the ranch to the movie industry to film Westerns. At the ranch, he housed Charles Manson and his followers. The 1969 murders of actress Sharon Tate and six others by Manson's devotees were allegedly hatched at the Spahn Ranch. Manson persuaded Spahn to permit "the Family" to live at his ranch. Manson ordered the Family women to have sex with the then nearly blind 80-year-old. The women also acted as seeing eye guides for Spahn. Spahn nicknamed all the Manson girls—Squeaky, Sadie Mae, Ouisch, etc. According to Manson Family member Paul Watkins, notorious Mansonite Lynette "Squeaky" Fromme got her nickname because of the sound she made when Spahn ran his hand up her thigh. Family member Charles Watson has written that his own nickname, "Tex", was given to him by Spahn, who recognized his Texas accent.
Document 2: Helter Skelter (2004 film): Helter Skelter is a 2004 television film directed by John Gray based on the murders of the Charles Manson Family. The film was a remake of the 1976 two-part TV movie. Unlike the 1976 version, which focused mainly on the police investigation and the murder trial (as did the novel), this version focused mainly on Linda Kasabian's involvement with the Manson Family.
Document 3: Reclaiming History: Reclaiming History: The Assassination of President John F. Kennedy is a book by attorney Vincent Bugliosi (Norton, 2007; 1,632 pages; ISBN  ) that analyzes the events surrounding the assassination of John F. Kennedy, focusing on the lives of Lee Harvey Oswald and Jack Ruby. The book is drawn from many sources, including the Warren Report. Bugliosi's 1,632-page, 1,535,791-word book (with a CD-ROM containing an additional 1,000+ pages of footnotes) analyzes all aspects of the assassination and the rise of the conspiracy theories about Kennedy's assassination in the years subsequent to the event. Bugliosi argues that the Warren Commission's conclusion that Lee Oswald acted alone in shooting Kennedy is correct. The book won the 2008 Edgar Award for the Best Fact Crime category.
Document 4: Helter Skelter (book): Helter Skelter (1974) is a true crime book by Vincent Bugliosi and Curt Gentry. Bugliosi had served as the prosecutor in the 1970 trial of Charles Manson. The book presents his firsthand account of the cases of Manson, Susan Atkins, Patricia Krenwinkel, and other members of the self-described Manson Family. It is the best-selling true crime book in history.
Document 5: Manson Family: The Manson Family was a quasi-commune that arose in California in the late 1960s, led by Charles Manson. They gained national notoriety after the infamous murder of actress Sharon Tate and four others on August 9, 1969 by Tex Watson and three other members of the Family, acting under the instructions of Charles Manson. Group members were also responsible for a number of other murders and assaults, and the attempted assassination of President Gerald Ford.
Document 6: Grim Sleeper: Grim Sleeper is the nickname for convicted serial killer Lonnie David Franklin Jr., responsible for at least ten murders and one attempted murder in Los Angeles, California. The attacker was dubbed the "Grim Sleeper" because he appeared to have taken a 14-year break from his crimes, from 1988 to 2002. In July 2010, Franklin was arrested as a suspect, and, after many delays, his trial began in February 2016. On May 5, 2016, the jury convicted him of killing nine women and one teenage girl. On June 6, 2016, the jury recommended the death sentence, and on August 10, 2016, Los Angeles Superior Court sentenced him to death for each of the ten victims named in the verdict.
Document 7: Leslie Van Houten: Leslie Louise Van Houten (born August 23, 1949) is an American murderer serving a life sentence in relation to the 1969 killings of Leno and Rosemary LaBianca, when Van Houten was 19 years old. She was arrested weeks later, and convicted at the main Charles Manson trial in 1971, at which she repeatedly sabotaged her own defense, and tried to exculpate Manson. She was convicted and became the youngest woman ever sentenced to death in California. However, executions were halted in the state in 1972 after the California Supreme Court ruled that the death penalty was unconstitutional in "The People of the State of California v. Robert Page Anderson", 493 P.2d 880, 6 Cal. 3d 628 (Cal. 1972). She was granted a new trial at which her defense to the charge of first degree murder was diminished responsibility, but the jury could not agree on a verdict. At a third trial, she was convicted and sentenced to life in prison, although with a possibility of parole. In relation to her case, high courts, parole boards, and the state governor have said that an inexplicable or racial motive for murder could merit exemplary punishment and outweigh any evidence of subsequent reform.
Document 8: Helter Skelter (album): Helter Skelter is the second studio album by The D.O.C.; released on January 23, 1996. This album was an attempt at making a comeback following the car crash which severely damaged his vocal cords. The album was widely ignored, and has even been discredited by D.O.C himself. The name of the album is a reference to Charles Manson's idea of The Beatles' "Helter Skelter" prophesying the end of the world.
Document 9: Charles Manson: Charles Milles Manson (born Charles Milles Maddox, November 12, 1934) is an American convicted mass murderer and former cult leader who led what became known as the Manson Family, a quasi-commune that arose in California in the late 1960s. Manson's followers committed a series of nine murders at four locations in July and August 1969. In 1971 he was found guilty of first-degree murder and conspiracy to commit murder for the deaths of seven people – most notably of the actress Sharon Tate – all of which were carried out by members of the group at his instruction. Manson also received first-degree murder convictions for two other deaths. Manson was originally sentenced to death, but his sentence was commuted to life imprisonment when California invalidated the state's death penalty statute in 1972. He is currently serving multiple life sentences at California State Prison in Corcoran.
Document 10: Tex Watson: Charles Denton "Tex" Watson (born December 2, 1945) is an American murderer who was a central member of the "Manson family" led by Charles Manson. On August 9, 1969, Watson and other Manson followers murdered pregnant actress Sharon Tate and four other people at a house in Benedict Canyon, Los Angeles. The next night, Watson traveled to Los Feliz, Los Angeles, and participated in the murders of Leno and Rosemary LaBianca, as part of Manson's "Helter Skelter" vision. Watson was found guilty of murder and imprisoned in 1971.
Document 11: Eugene Patterson Harris: Pat Harris has been a leading American criminal defense and civil rights attorney for over 25 years based in Los Angeles, California. In addition, he has co-written two non-fiction books, "Mistrial: An Inside Look at How the Criminal Justice System Works ... and Sometimes Doesn't" and the Susan McDougal autobiography, "The Woman Who Wouldn't Talk", which spent four weeks on the New York Times' bestseller list"." As a lawyer, he has been involved in a number of high-profile cases including representing Susan McDougal in her fight against Whitewater prosecutor Kenneth Starr, and Will Lynch who was accused of assaulting a priest who had abused him forty years earlier.
Document 12: Susan Atkins: Susan Denise Atkins (May 7, 1948 September 24, 2009) was a convicted American murderer who was a member of Charles Manson's "Family". Manson and his followers committed a series of nine murders at four locations in California, over a period of five weeks in the summer of 1969. Known within the Manson family as Sadie Mae Glutz or Sexy Sadie, Atkins was convicted for her participation in eight of these killings, including the most notorious, the "Tate/LaBianca" murders. She was sentenced to death, which was subsequently commuted to life in prison. Atkins was incarcerated from October 1, 1969, until her death – a period exactly one week short of 40 years. At the time of her death, Atkins was California's longest-serving female inmate.
Document 13: Helter Skelter: L.A. Art in the 1990s: Helter Skelter: L.A. Art in the 1990s, named after The Beatles' song that motivated Charles Manson, was a contemporary art exhibition held from January 26, to April 26, 1992 at the L.A. Museum of Contemporary Art. Organized by Paul Schimmel, "Helter Skelter" displayed the work of 16 artists. Featuring works of sex, violence, and warped Americana, the exhibition aimed to destroy stereotypes of L.A. art and challenge the New York school. At the time "Helter Skelter" was hailed as the prime example of modern contemporary art and is still held as one of the most important and influential contemporary art exhibits in recent years.
Document 14: Harold Schechter: Harold Schechter is an American true crime writer who specializes in serial killers. He is a professor of American literature and popular culture at Queens College, City University of New York. Schechter’s essays have appeared in numerous publications including "The New York Times, The Wall Street Journal, The Los Angeles Times", and the "International Herald Tribune". He is the editor of the Library of America volume, "True Crime: An American Anthology". His newest book, "The Mad Sculptor" (about a sensational triple murder at Beekman Place in New York City in 1937), was published in February 2014.
Document 15: In the Spirit of Crazy Horse: In the Spirit of Crazy Horse is a book by Peter Matthiessen which chronicles "The story of Leonard Peltier and the FBI's war on the American Indian Movement". It was first published in 1983. Leonard Peltier was convicted of murder in 1977 and sentenced to life in prison for the 1975 killing of two FBI agents, after a trial which the author alleges was based on widespread fraud and government misconduct. The book portrays the violent turmoil on the Pine Ridge Indian Reservation during that time, including the 1973 'Wounded Knee Incident' and the following "reign of terror", and describes the 1975 'Pine Ridge Shoot–out' or 'Oglala Firefight' and the subsequent trials and their aftermath. Distribution of the book was interrupted for almost a decade while legal challenges against it were resolved.
ground_truth: Charles Manson