Jeremiah 41:6-8

World English Bible

⁶ Ishmael the son of Nethaniah went out from Mizpah to meet them, weeping all along as he went: and as he met them, he said to them, “Come to Gedaliah the son of Ahikam.” ⁷ It was so, when they came into the middle of the city, that Ishmael the son of Nethaniah killed them, and cast them into the middle of the pit, he, and the men who were with him. ⁸ But ten men were found among those who said to Ishmael, “Don’t kill us; for we have stores hidden in the field, of wheat, and of barley, and of oil, and of honey.”

So he stopped, and didn’t kill them among their brothers.