I say “to an extent” because regret in that story is not enormous, for the man is so ordinary that he seems not to have within him the capacity to do things that are enormous in their consequence. He is merely careless, and somewhat arrogant; his death is a result of his imprudence in the face of nature, and is not connected (at least not in the episode of his life to which we are privy) to some deed from his past that might have arisen from, say, a collusion with the spirit of evil, which later would’ve preyed on his conscience.