Shakespeare shows Macbeth’s guilt  when Macbeth is talking to Lady Macbeth about his guilt; Macbeth says that he is guilty also he is gone too far and he is out of control with the situation. Furthermore he is unable to go back to the man that he was before, he will have to carry on killing people because now it is too late. If he was to go back to the man that he was before people would get suspicious and try to kill him.