Assassination: Amnon, by Absalom

Now Absalom had ordered his young men, “Watch Amnon until his heart is merry with wine, and when I order you to strike Amnon down, you are to kill him. Do not be afraid. Have I not commanded you? Be courageous and valiant!”

So Absalom’s young men did to Amnon just as Absalom had ordered. Then all the other sons of the king got up, and each one fled on his mule.