ESV: On the day after the murder of Gedaliah, before anyone knew of it,
NIV: The day after Gedaliah’s assassination, before anyone knew about it,
NASB: Now it happened on the next day after the killing of Gedaliah, when no one knew about it,
CSB: On the day after he had killed Gedaliah, when no one knew yet,
NLT: The next day, before anyone had heard about Gedaliah’s murder,
KJV: And it came to pass the second day after he had slain Gedaliah, and no man knew it,
NKJV: And it happened, on the second day after he had killed Gedaliah, when as yet no one knew it,