By the autumn of 1973, so many desperate divers had committed suicide at the site that a Golden Gate Bridge Board of Directors convened with a plan to erect a $1 million barrier to deter future death dives. On the night of November 16, 1974, unsuspecting audiences were enticed to see an unidentified sneak preview at San Francisco’s Empire Theater … Mass commotion ensued … From the moment when John Larroquette’s voice claimed Chain Saw was based on “a true story,” the result came close to what a psychedelic garage band from the mid-’60s once called a “psychotic reaction.”