Jer 41:1-3

Insurrection against Gedaliah 1In the seventh month, Ishmael son of Nethaniah son of Elishama, of the royal family, one of the chief officers of the king, came with ten men to Gedaliah son of Ahikam, at Mizpah. As they ate bread together there at Mizpah,2Ishmael son of Nethaniah and the ten men with him got up and struck down Gedaliah son of Ahikam son of Shaphan with the sword and killed him, because the king of Babylon had appointed him governor in the land.3Ishmael also killed all the Judeans who were with Gedaliah at Mizpah, and the Chaldean soldiers who happened to be there.