bud purdy knew him. >> it was sad, he was a friend. >> reporter: hemingway took his life in his foyereporter: bud purdy was one of the last people to witness the depression that clouded his final years. >> he was very uncertain about everything. he wasn't, his mind wasn't working good. >> reporter: what happened to hemingway? it's a question we're still trying to sort out. fame kind of ate him in a way. >> reporter: hemingway was a journalist before he was a novelist, from an early age, practicing and refining his spartan style. >> when this first book came out "the sun also rises" it was if he invented a new language. >> american idiom in a plain spoken unadorned style. i think for many writers this opened the flood gates. >> reporter: hemingway moved to paris in the '20s, continuing a worldwide tour that would last for decades. he lived in florida, safaried in africa, reported on a spanish civil war and sailed the caribbean, many times crossing to cuba, all the while writing, and understanding that what he left out was more important than what he put in. >> he said the dignity of an