Question: who killed andy in the night the lights went out in georgia
Answer: 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 .