Want to enter the mind of the late 60's Los Angeles music, celebrity and hippie scene by way of Charlie Manson? Here's a YT link to a well done documentary by the Los Angeles Times. Interestingly while the focus is on the moral and ethical compromises throughout that culture and time, much is revealed about the same type of corruption (of the soul and mind) today. Same as it ever was, perhaps now even worse as the corruption isn't so evident as it was back then in the form of hair and clothing style among the young and dumb.
https://youtu.be/TnkGrK7dtb0