7 When they went into the city, Ishmael son of Nethaniah and the men who were with him slaughtered them and threw them into a cistern.

Read Jeremiah 41:7 Using Other Translations

And it was so, when they came into the midst of the city, that Ishmael the son of Nethaniah slew them, and cast them into the midst of the pit, he, and the men that were with him.
When they came into the city, Ishmael the son of Nethaniah and the men with him slaughtered them and cast them into a cistern.
But as soon as they were all inside the town, Ishmael and his men killed all but ten of them and threw their bodies into a cistern.