The Manson Murders' explores alternative theories to the 'Helter Skelter' narrative, including possible government ties to Charles Manson.

Errol Morris' film is built around the theory that Charles Manson learned mind-control techniques from the CIA. But guess what? There's no evidence.

The movie is credited as an adaptation of Tom O’Neill’s book Chaos: Charles Manson, the CIA, and the Secret History of the Sixties, a sprawling, occasionally off-the-rails investigation that eventually ties Manson to the U.