(1920 – 1996) Psychologist and apostle of the hallucinogen LSD (d-Lysergic Acid Diethylamide). As a Harvard professor, influenced by Aldous Huxley, Leary tested LSD and psilocybin among criminals, seminarians and other volunteers. Expelled from Harvard, he explored altered consciousness and new social visions, becoming a 1960s guru to artists and hippies. After his 1967 drug arrest, the Black Panthers helped him flee to Algeria and Afghanistan; he later served prison time. An amalgam of prophet and comedian, Leary epitomized an intellectual drug culture crushed by conservative Republican dominance.

He died of cancer, after debating his suicide on the Internet.