Check out these materials for more on Charles Manson muders.
"Helter Skelter" by Vincent Bugliosi
"Sharon Tate and the Manson Murders" by Greg King
"Five to Die: The Book That Helped Convict Manson" by Ivor Davis
"The Family" by Ed Sanders
"Desert Shadows" by Bob Murphy
"Dennis Wilson: The Real Beach Boy" by John Stebbins
"Polanski: A Biography" by Christopher Sandford
"These Canyons are Full of Ghosts" by Emmett Harder
"Helter Skelter" - DVD 1976
"Six Degrees of Helter Skelter" by Scott Michaels -DVD 2008
"Manson" by Robert Hendrickson - DVD 1973