The tell-tale heart

My thoughts about "The tell-tale heart" was that it was just very weird because this guy is living with a old man. Then this guy just does not like that eye and decides to get rid of it. But then on one night he goes to his bed room and sees him in bed sleeping but then next thing you notice is that he does not kill the old man. i think he did not kill the old man because he probably wants to see the eye suffer while he destroys the old man. The thing that really confused me was that another night he sees the old man and then he layed him on the floor and then he throws the whole bed on top o fhim and the old man dies. then on that same night the oficers come to knock on the door and then they ask the guy if every thing is going ok here because the lady next door was complaining that there was alot of noise here. The part that kind of scared me was when the guy was hearing the heart of the old man and that he thought that the officers heard it too but he was wrong. Then later while they were talking all together the guy confesses that he was the one who murdered the old man and then the guy showed the police men the body and obviosly he got arrested.