Vincent Bugliosi 
Helter Skelter: Part Six of the Shocking Manson Murders [EPUB ebook] 

Part Six: The Official Trial Begins The prosecution decides to pursue vicarious liability via conspiracy, meaning that all who were involved in the conspiracy to commit murder can be charged. On trial, Manson proves to be surprisingly honest, though his ego and tendency to play word games with his own testimony is called into question. Prosecution hints they will reveal a 'surprise motive’. Key witness Linda Kasabian is called to testify.