Macbeth's former best friend, Banquo was also killed by Macbeth. Banquo was killed, because he knew too much about the murder of Duncan. But that was not his fatal flaw. Banquo's fatal flaw was that although he knew that Macbeth killed Duncan, he really didn't do anything about it. There were many opportunities where Banquo could tell someone such as Macduff what he thought about the murders. But Banquo didn't deserve death just because he didn't act quickly in telling someone that Macbeth killed Duncan. Banquo knew that if he said anything, no one would believe him and he would be executed.
             Lady Macbeth is Macbeth's wife. She is his coconspirator in killing Duncan. Although she helps Macbeth get the courage to commit the murder, she isn't willing to do it herself. She uses the excuse that Duncan looked too much like her father. Unlike Macbeth though, it is harder for Lady Macbeth to live with the fact that she helped cause the murder of the king. And in the end, it makes her so crazy that she com
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