The point of view I used is objective

The police officers knocked on the door, and waited to be let in. The protagonist opened the door to let the police officers in. He led them through the house confidently, allowing them to look at anything, in any room that they desired around the house. Once they got to the old man’s room, the protagonist brought in chairs for the police officers to sit on and placed his own chair on the very spot where he had placed the old man’s dead corpse a few hours before. The police officers are convinced that nothing has wrong has happened and that the protagonist is innocent. The officers are having a great time talking and laughing with one another. While they are enjoying themselves, the protagonist starts acting a big odd. The protagonist seems to imagine noises that aren’t actually there, and is acting particularly strange. The police officers don’t pay attention to the protagonist and continue their conversation, while the protagonist continues to act out. The protagonist starts getting pale. The protagonist continues to panic, and act strange all around the room, until he reaches his breaking point and screams: “Villains! Dissemble no more! I admit the deed! – tear up the planks! here, here! – it is the beating of his hideous heart!”