Jeremiah 41:5 WEB

³  Ishmael also killed all the Jews who were with him, [to wit], with Gedaliah, at Mizpah, and the Chaldeans who were found there, the men of war.

⁴  It happened the second day after he had killed Gedaliah, and no man knew it,

⁵  that there came men from Shechem, from Shiloh, and from Samaria, even eighty men, having their beards shaved and their clothes torn, and having cut themselves, with meal-offerings and frankincense in their hand, to bring them to the house of Yahweh.

⁶  Ishmael the son of Nethaniah went forth from Mizpah to meet them, weeping all along as he went: and it happened, as he met them, he said to them, Come to Gedaliah the son of Ahikam.

⁷  It was so, when they came into the midst of the city, that Ishmael the son of Nethaniah killed them, [and cast them] into the midst of the pit, he, and the men who were with him.