Macduff is the first person to discover that the king has been murdered. He is therefore the first person to react to the death.
Macbeth caused it, Lady Macbeth proposed it, the stewards were killed for it, and the king's sons took the blame for it.
Duncan's guards.
A big effect
The line of kings shown to Macbeth in his vision are intended to imply that Banquo's descendants will not only be kings but will be kings for ever. Naturally this was a polite flattery to King James, who was supposedly one of them. Anyway, Macbeth gets the point, although why it should distress him as much as it does is puzzling.
In 1 Kings Chapter 3, a baby was to be divided in half, but was saved when the first woman reacted deeply to King Solomon to not kill her baby.
After King Duncan's death in William Shakespeare's play "Macbeth," Macbeth initially feigns shock and grief, claiming he was so overwhelmed by the news that he killed the king's guards in a fit of rage. However, his reaction is later revealed to be part of his plan to seize the throne for himself. Macbeth's reaction to the king's death ultimately sets off a chain of events leading to his own downfall.
Drugged them.
angus is one of the kings thanes
Macduff
"All hail Macbeth, hail to thee, Thane of Glamis" - what he already is "All hail Macbeth, hail to thee, Thane of Cawdor" - who lives "All hail Macbeth, that shalt be King herafter" and for Banquo they said his children will be kings
The line of eight kings in Shakespeare's play "Macbeth" is said to descend from Banquo, who was a character in the play and a friend of Macbeth. Banquo is described as being the ancestor of Scottish kings in the play.
Macbeth