Even before committing suicide, he came close to death through World War 1, four car crashes, and two plane crashes.
He ended his life by shooting himself, but a close friend of his has said Hemingway tried killing himself by walking into a plane propeller.
Up to his death, Hemingway had believed that he was being watched and monitored. After his passing it was discovered that he indeed was. The FBI kept an open file on him.