Jeremiah 41:9-10

Now the pit wherein Ishmael had cast all the dead bodies of the men, whom he had slain because of Gedaliah, {was} it which Asa the king had made for fear of Baasha king of Israel: {and} Ishmael the son of Nethaniah filled it with {them that were} slain. {because...: or, near Gedaliah: Heb. by the hand, or, by the side of Gedaliah} Then Ishmael carried away captive all the residue of the people that {were} in Mizpah, {even} the king's daughters, and all the people that remained in Mizpah, whom Nebuzaradan the captain of the guard had committed to Gedaliah the son of Ahikam: and Ishmael the son of Nethaniah carried them away captive, and departed to go over to the Ammonites.