First Duncan is killed and his sons flee. ROSS: Because they were the murderers - so says Macbeth. LENNOX: And then Banquo is killed and his son Fleance runs away. ROSS: And Macbeth says Fleance ...

Macbeth sends assassins to murder Banquo and his son, but his son, Fleance, escapes. Later that evening, Macbeth is haunted by the ghost of Banquo. Macbeth goes to see the Witches again.