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.
"Helter Skelter" is a song by the English rock band the Beatles that was released in 1968 on their self-titled double album, often known as "the White Album".
 It was written by Paul McCartney and credited to Lennon–McCartney.
 The song was a product of McCartney's attempt to create a sound as loud and dirty as possible.
 The Beatles' recording has been noted for its "proto-metal roar" and is considered by music historians to be a key influence in the early development of heavy metal. "
Rolling Stone" magazine ranked "Helter Skelter" 52nd on its list of the "100 Greatest Beatles songs".
Rudy Ramos (born September 19, 1950) is an American actor and musician whose films include "Helter Skelter" (1976), "The Enforcer" (1976), "The Driver" (1978), "Defiance" (1980), "Beverly Hills Cop II" (1987), "Quicksilver" (1986), "Colors" (1988), and "Open House" (1987).
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.
A helter skelter is an amusement ride with a slide built in a spiral around a high tower.
 Users climb up inside the tower and slide down the outside, usually on a mat or hessian (burlap) sack.
 Typically the ride will be of wooden construction and, in the case of fairground versions, designed to be disassembled to facilitate transportation between sites.
 The term is primarily (but not exclusively) found in the United Kingdom.
 In the United States, the ride is uncommon and may be called by other names, such as a "Skyslide".
In the months leading up to the Tate/LaBianca murders in August 1969, Charles Manson often spoke to the members of his "Family" about Helter Skelter, an apocalyptic war arising from racial tensions between blacks and whites.
 This "chimerical vision"—as it was termed by the court that heard Manson's appeal from his conviction for the killings—involved reference to music of the Beatles (particularly songs from their 1968 double album "The Beatles", also known as "the White Album") and to the New Testament's Book of Revelation.
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.
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.
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.
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.

Question: Helter Skelter chronicled the case of the murderer who was part of whose "family"?
Answer: Charles Manson