Jeremiah 41:7-9

7And it was so, when they came into the midst of the city, that Ishmael the son of Nethaniah slew them, and cast them into the midst of the pit, he, and the men that were with him.

8But ten men were found among them that said unto Ishmael, Slay us not: for we have stores hidden in the field, of wheat, and of barley, and of oil, and of honey. So he forbare, and slew them not among their brethren.

9Now the pit wherein Ishmael cast all the dead bodies of the men whom he had slain, by the side of Gedaliah, (the same was that which Asa the king had made for fear of Baasha king of Israel,) Ishmael the son of Nethaniah filled it with them that were slain.