Jeremiah 41:6-8

6Then Ishmael the son of Nethaniah went out from Mizpah to meet them, weeping [false tears] as he went. As he met them, he said to them, “Come to Gedaliah the son of Ahikam!”

7Yet when they came into the city, Ishmael the son of Nethaniah and the men who were with him slaughtered them and threw them into the cistern (underground water reservoir).

8But ten men who were among them said to Ishmael, “Do not kill us! We have stores of wheat and barley and oil and honey hidden in the field.” So he stopped and did not kill them along with their companions.