2 Samuel 13:28-30

28Now Absalom commanded his servants, “Notice carefully, when Amnon’s heart is joyous with wine, and when I say to you, ‘Strike Amnon,’ then kill him. Do not be afraid; have I not commanded you myself [and in doing so have I not taken full responsibility for his death]? Be courageous and brave.”

29So the servants of Absalom did to Amnon just as Absalom had commanded. Then all the king’s sons got up, and every man mounted his mule and fled.

30Now it happened while they were on the way [back home], that the [exaggerated] report came to David, “Absalom has killed all the king’s sons, and not one of them is left.”