Ishmael and his ten men got up and killed Gedaliah son of Ahikam, the son of Shaphan, with a sword. (Gedaliah was the man the king of Babylon had chosen as governor over Judah.)
It would be the same to say, “We should do evil so that good will come.” Some people find fault with us and say we teach this, but they are wrong and deserve the punishment they will receive.