The story wraps up as the narrator, revealing herself as Brother 's younger sister, confesses that it was she who had left the footprints that her brother had encountered on his way to Andy 's house, and that she had not only shot and killed Andy with her own gun, but the adulterous wife as well, in her case disposing of the body in a way that no one would ever find it.
who killed andy in the night the lights went out in georgia
Brother 's younger sister