Hunter Stockton Thompson (July 18, 1937 – February 20, 2005) was an American journalist and author, regarded as one of the principal pioneers of New Journalism, along with Gay Talese, Truman Capote, Norman Mailer, Joan Didion, and Tom Wolfe. He rose to prominence with the publication of Hell's Angels (1967), a book for which he spent a year living with the Hells Angels motorcycle club to write a first-hand account of their lives and experiences.
https://en.wikipedia.org/wiki/Hunter_S._Thompson