The first murder that Macbeth commits is that of King Duncan. His murder was inspired from the witches who are referred to as the "weird sisters" by many other of the characters. There mischief’s come up from their supernatural powers, but it mainly seems the result of their understanding of the weaknesses of their specific interlocutors, which they mainly play upon Macbeth. The first time When Macbeth interacts with the witches is when was riding back, being accompanied by Banquo. The Witches greet Macbeth as the Thane of Glamis “All hail, Macbeth! Hail to thee, thane of Glamis” (I, 3, 48), and then as the Thane of Cawdor “All hail, Macbeth! Hail to thee, thane of Cawdor” (I, 3, 49). Macbeth in the play had just become the Thane of Glamis and when he was then greeted as the King of Scotland “All hail, Macbeth! That shalt be King hereafter” (I, 3, 50), he wondered if it was true because the King was still alive and in good health. After the Witches mystical disappeared Macbeth found out that he became Thane of Cawdor. After Macbeth found this out, he wondered whether the predictions of the Witches of him being King were going to be true or not. I believe this is the point in which Macbeth starts to think as a Villain. If the witches had never greeted him as King of Scotland, he would have never contemplated killing King Duncan.
As soon as Lady Macbeth found out the predictions, she urged him to kill King Duncan. Usually Macbeth rejected this and had other thoughts but by this he was called a coward from Lady Macbeth, which initially caused him to change his character, which could be the reason for the character change. Lady Macbeth had continually been using ‘reverse psychology’ by telling him that she was committing murder herself; “unsex me here” (I, 5, 40) and “make thick my blood” (I, 5, 42), with these lines she tried to tell him that even though she was an women, she had an heart of a man. Lady Macbeth had as much to do with the murder on King Duncan as Macbeth did, by constantly pressurising him, and helping to suppress the murder by ordering him to wash his hands to clean off the blood.
After the murder and becoming King, he started killing every single person who was in the line of throne or the people he suspected him of killing Duncan. As Macbeth had another encounter with the witches he was told that Banquo’s son Fleance would become king; “Thou shalt get kings, though thou be none: So all hail, Macbeth and Banquo!” (I, 3, 68), therefore Macbeth decided to get both of them killed. By this Banquo was killed but Fleance had escaped.
At a Banquet held for Macbeth for the new King of Scotland, Macduff had not been there. Then the Witches occurred and mentioned that; “beware Macduff, Beware the thane of Fife.” (IV, 1, 71), instead when he found out that Macduff fled to England he instead got his Family killed.
All the way along it became clear that Macbeth’s ambition and manipulation held by Lady Macbeth and the witches led him to the numerous murders. Although in the 11th century certain people killed each other there were still counted as hero’s, but if we contrast that in the modern time it becomes clear that he was an villain all the way along. People like Saddam Hussein, were dictators and killed people for any reasons which had disturbed them, similar to Macbeth, he himself started killing people and running Scotland under clear dictatorship, which was shown when people fled to England and Ireland for their good. Shakespeare uses Macbeth to show the terrible effects that ambition can have on a man who lacks strength of a certain character.