Macbeth immediately regrets killing the king, and foolishly forgets to leave the daggers with the body, leaving Lady Macbeth to take them back and plant them on the sleeping guards. In the morning, the murder is discovered, and in a fit of panic, Macbeth kills the guards. Fearing for their lives, Duncan's sons (Malcolm and Donaldbain) flee Scotland, and soon after, Macbeth is crowned king.