In "The Black Cat", by Edgar Allan Poe, the narrator's participation in the cat's death foreshadows <em>The narrator himself was going to be hanged as punishment for his crime.</em>
Foreshadow is a literary device, that consists of clues to suggest what is going to happen later in the story. In this short story, the narrator starts saying that he is about to be hanged the day after he wants to give a detailed description of the occurrences that led to his confinement. He himself is going to be hanged as punishment for his crimes, the same way in which he hanged Pluto, his first black cat.
