I am not mad! Listen to how calmly I can tell you the events of that night..
You see, every night at midnight, I would go into his chamber and watch him as he slept. But every night I watched, I could not do the deed because it was simply just the old man, his eye was not showing.
But, upon the 8th night, I hit a lantern and knocked it over, waking the old man up. I waited for an hour for the man to go back to sleep, but he did not, so I killed him!
Then, I took apart the body and stuffed it in the floor boards, so that no one could find it.
Then, when two officers arrived because of someone calling over hearing a scream, I simply told them I had scared myself and accidentally let out a scream. I had convinced them.
Wait.. Do you not hear that ticking? It's getting louder! Why can you not hear it? Are making a mockery of my work? I killed him and you know it! You are just making fun of me now!! Arghhhh!! I killed him, see?! There lays his eye!