“Even today, no one is sure if Fred Herko intended to kill himself when he jumped out of the window” – naked, with Mozart blasting away – “of his friend Johnny Dodd’s Greenwich Village apartment in 1964. The 28-year-old dancer and performer – one of the central figures of New York’s 60s avant-garde and a star of Andy Warhol’s first movies – was high on speed, and possibly LSD.”