The murderers kill Banquo, who dies urging his son to flee and to avenge his death. One of the murderers extinguishes the torch, and in the darkness Fleance escapes. The murderers leave with Banquo's body to find Macbeth and tell him what has happened.
The Witches' first prophecy has come true. The opening of Scene 3 does more than to simply recall us to the world of the supernatural of Act I, Scene 1: The Witches' curse of the sailor foreshadows what Fate has in store for Macbeth.
"The three with the medals were like hunting hawks; and I was not a hawk, although I might seem a hawk to those who had never hunted; they. the three, knew better and so we drifted apart."