As the story goes, Neil Young had a peripheral connection to Charles Manson. They weren’t exactly buddies, yet there was a sort of passing amity that perhaps could only have existed in the old hippie days of 1960s Los Angeles, the weird scenes up Laurel Canyon in particular. That was before all the slaughter, of course. After which Mr. Young found a way to get his impressions into at least one song, in particular the part about getting armed to the teeth, hopping into dune buggies, then swarming down the canyon, exterminating everyone they saw, particularly all the hippie rock star types who hadn’t let Chuck join their club. Which was a scheme that he never got around to executing. There were a bunch of those.