<span>I saw a duck, a magician, and a liquor store when I went running. Technically this is a sentence that uses comas correctly so hope it helps!!!!</span>
I dont know what you mean by that btw
It allows him to hear the war drum that forces him to kill. The acute silence makes the narrator so uncomfortable, he must make the old man scream. The narrator thinks that only killing the old man will make all of the surrounding noises disappear