In 1970, who began to popularise a style of journalism known as "Gonzo journalism"?

Answer 1

Hunter S. Thompson
Gonzo journalism is a style of journalism that is written without claims of objectivity, often including the reporter as part of the story via a first-person narrative. The word "gonzo" is believed to have been first used in 1970 to describe an article by Hunter S. Thompson, who later popularized the style.