2 Samuel 3:26-30 - Joab Murders Abner
26 When Joab came out from David, he sent messengers after Abner, and they brought him back from the well of Sirah; but David did not know it. 27 So when Abner returned to Hebron, Joab took him aside into the middle of the gate to speak with him privately, and there
28 Afterward when David heard it, he said, “I and my kingdom are innocent before the Lord forever of the blood of Abner the son of Ner. 29