1936-1989. US left-wing political activist, founder of the Yippies (Youth International Party), a political offshoot of the hippies. He was a member of the Chicago Seven, a radical group tried for attempting to disrupt the 1968 Democratic convention. Hoffman was arrested 52 times and was a fugitive from justice 1973-80. He specialized in imaginative political gestures to gain media attention, for example throwing dollar bills to the floor of the New York Stock Exchange 1967. His books include Revolution for the Hell of It 1969. He campaigned against the Vietnam War and, later, for the environment. He committed suicide.