What does the narrator blame his behavior in the black cat?

In "The Black Cat," the narrator blames his behavior on the influence of alcohol, which he claims led to a gradual moral decline and the unleashing of his violent tendencies. He describes how drinking transformed him from a loving pet owner into a cruel and abusive individual. The narrator suggests that his Alcoholism made him lose control over his actions, ultimately leading to tragic consequences. This self-justification highlights his inability to take full responsibility for his actions.