...while remembering the prophesy told by the weird witches. And also the reason that he killed Macduff's familly is that he had a very high place inside the rebellion, so he wanted to kill him to destroy a big part of this rebellion. But he wasn't at his house that day, so the murderers only...

...Witches, he starts to change. He became more ambitious and kills the king to get his place. as he is crowed king, he sees a person suspected to be able to oppose him in everyone. He finally kills Banquo and Macduff's familly, which seals his fate. he is killed by Macduff after he became pure...