Read it through once

When I had made an end of all things, and supposing that my secret murder would remain forever undiscovered, I sat down calmly in the chair, and waited for the approach of the police. Presently there came a knocking at the street door. I went down to open it. It was the neighbor who had heard a shriek and had called the watch. I welcomed them with calmness and civility. I showed them how kindly I had treated the old man, and how I had found him dead upon the floor. They examined the room, and praised the furniture. They searched the house, and found nothing. They asked me what had happened, and I told them that the old man had died of a natural death, and that I had discovered him in the morning. “He was a very kind old man,” I said; “I loved him.”