When I Decide To Kill A Man

When you're perfectly calm when dismembering a body, obviously you're not mad. Throughout the entire poem, the narrator repeated expressed signs of rather extreme insanity.
From the beginning of the short story, the narrator has always had a few screws missing. On page 1 the narrator states, "I have lost control of my mind, why do you say that I am mad?" The narrator is clearly in denial, he knows that the ideas that are swarming through his mind at the very least, indicate some sort of insanity. However, some believe that he is sane and rather just afraid of the eye, that is not the case though. Would a sane human being kill an innocent man? In the story on page 2, it says, "And so, I finally decide to kill him, kill the old man and close that eye forever." He is perfectly content with the idea of killing this man just because of his eye. Would a sane person simply not just avoid looking at it or maybe even find a new employer? The narrator isn't sane, not in the slightest. He is insane, no this man is completely deranged to the point of... murder.
As the short story progresses, even more of the narrator's psychotic ways start to become visible.
It wasn't enough to simply kill the man, he dismembered his entire body. On page 3 the story states, "First I cut off the head, then the arms and the legs. I was careful not to let a single drop of blood fall on the floor. I pulled up three of the floorboards that formed the floor, and put the pieces of the body there." He was not frantic nor hysterical he was calm, calm enough to meticulously sever his limbs. Moreover, he uprooted the floorboards to hide the man's body. He had already so strategically thought out his plan so that no evidence would be left behind. The narrator knew the man, he lived in his home, how could someone sane do this unspeakable act to someone who had been so kind to employ
him?
In time, the police arrived at the request of a neighbor. On page 4 the author states, "My easy, quiet manner made the policemen believe my story. So they sat talking with me in a friendly way" He didn't stress one bit about the police officers. In fact, he acted if they were his old friends that he hasn't seen in a while. In addition, on page 4 the story says, "As if playing a game with them I asked them to sit down and talk for a while." Even after this gruesome murder that he just committed his confidence only increases and he's even becoming more and more comfortable for averting the punishment of the authorities. In fact, the situation probably increased it, even more, knowing that the dead body was right under their noses. The narrator is toying with them as if the world bends to his commands and that there are no consequences to his actions.
No matter the time in the story the narrator continued to display signs of insanity. The narrator was completely crazy at no point did he have to kill the man who let him live and work in his house as a probably trusted friend.