In the summer of 1969, the dream of the sixties died in a wave of savage, seemingly random murders that terrorized Los Angeles. The bizarre crime scenes left behind a single, terrifying question: Why? Step inside the definitive investigation with the one man who could tell the full story: lead prosecutor Vincent Bugliosi. This is the bone-chilling, firsthand account of the hunt for Charles Manson and his "Family," exposing the twisted ‘Helter Skelter’ motive that drove them to commit one of history’s most infamous crimes.