Glad to see this story is still upsetting readers today. The narrator makes it sound like he had lost all control due to alcohol but all through the story I feel that he is insane from the beginning. He is seemingly honest about his behavior and full of empathy but it seems that psychotic nature is always there beneath the surface. You do not start abusing animals after getting drunk unless there is something already amiss. The narrator doesn't seem to understand that at all. He see's the second cat when he's at a bar which is nice. Similar to A Tell-Tale Heart because the narrator's obsessions drives him further and further to more crazed acts.