Jeremiah 41:11

But when Johanan the son of Kareah
The same that is mentioned ( Jeremiah 40:8 Jeremiah 40:13 Jeremiah 40:15 ) ; and who had informed Gedaliah of Ishmael's designs against him, but he would not believe him: and all the captains of the forces that [were] with him;
his brother Jonathan, Seraiah, the sons of Ephai, and Jezaniah, ( Jeremiah 40:8 ) ; heard of all the evil that Ishmael the son of Nethaniah had done;
in murdering Gedaliah, and those that were with him, destroying seventy other persons he had decoyed, and carrying captive the rest of the people at Mizpah; for though Ishmael kept all this a secret as much as he could, for fear of these forces, and that he might get off clear to Ammon; yet, by some means or another, these captains came to hear of it, who, probably, were not at a great distance from Mizpah.