Jeremiah 41:2, 10

Ishmael the son of Nethaniah and the ten men with him rose up and struck down Gedaliah the son of Ahikam, son of Shaphan, with the sword, and killed him, whom the king of Babylon had appointed governor in the land.

Then Ishmael took captive all the rest of the people who were in Mizpah, the king’s daughters and all the people who were left at Mizpah, whom Nebuzaradan, the captain of the guard, had committed to Gedaliah the son of Ahikam. Ishmael the son of Nethaniah took them captive and set out to cross over to the Ammonites.