What is the theme in The Short, Happy Life of Francis Macomber by Ernest Hemingway?

Guilt and innocence is a theme in this story. Intimately connected with the theme of fate and chance is guilt and innocence. The reader must decide if Margaret Macomber shot her husband on purpose or if it was indeed an accident. If she has not shot him on purpose, then the act becomes a matter of chance or fate. If her action was intentional, however, then she is guilty of murder. The end of the story dramatizes this ambiguity; Wilson teases her about the "accident," implying that, though she protests her innocence, he himself does not believe her.