In Act IV of "The Tragedy of Macbeth," Macbeth commits the crime of ordering the murder of Macduff's family. This heinous act is driven by his increasing paranoia and desperation to maintain his grip on power as he sees Macduff as a threat due to the witches' prophecies. Unlike his previous crimes, which were strategic and aimed at securing his position, this act is fueled by fear and a sense of vulnerability.
1. **Reason for the crime:** Macbeth commits this crime in Act IV out of fear and a desire to eliminate any potential threats to his throne. He believes that by targeting Macduff's family, he can weaken his enemies and prevent any challenges to his rule.
2. **Difference from previous acts:** Unlike the murders of King Duncan and Banquo, which were planned and calculated, the crime in Act IV is impulsive and driven by fear. Macbeth's earlier actions were motivated by ambition and a thirst for power, while this act is more about self-preservation and paranoia.
3. **Supporting details from Act IV:** In Act IV, Macbeth seeks out the witches again for reassurance and is told to beware of Macduff. This warning further fuels his paranoia and leads to the decision to eliminate Macduff's family. The scene where Macbeth orders the murders is a stark contrast to his earlier actions, showing a descent into madness and brutality.
By examining Macbeth's crime in Act IV, we see a shift in his character from a calculated tyrant to a paranoid and ruthless ruler willing to commit atrocities to maintain his power.