Yirmeyah 41:9

Orthodox Jewish Bible

⁹ Now the cistern wherein Yishmael had cast all the pigrei ha’anashim (dead bodies of the men), whom he had slain because of Gedalyah, was the same cistern which Asa HaMelech had made for defense against Ba’asha Melech Yisroel: and Yishmael ben Netanyah filled it with them that were slain.