answer:
in act three, scene 3, three assassins who are hired by macbeth meet to murder banquo and his son, fleance, near the palace at night. as banquo and fleance enter the scene holding a torch, the murderers attack banquo, who screams for his son to flee. during the attack, the torch goes out, and banquo dies from his wounds. however, fleance is able to escape the attack and remain alive. following the attack, the murderers realize that they have failed at their mission by only killing banquo.
sorry im not sure if this is the answer.