He loved pets ever since he was a kid and his wife and him also shared a passion about animals.
He always came in drunk and this is what caused the cat to avoid because the cat would always be at the end of the abuse. Because of this that cat began to avoid him and this angered him.
Since the cat had ignored and avoided him he stabbed his eye out. Out of pure rage the cat had to live the rest of his life with one eye.
Since he didn't want people to see the cat with one eye he decided to end its misery. He then hung the cat.
He came back to see his house on fire with only one wall up with a black cat shadow on it. To make sure he wasn't insane he made himself believe that someone had thrown the cat carcass into the window and had gotten between the walls causing the shadow.
Since his wife had gotten in his way when he was attempting to kill the cat he was compelled to hide the body in the cellar below. He was heartbroken but it be like that sometimes.