Mass Murder

Joshua next passed on with all Israel from Libnah to Lachish, where they set up a camp during the attack.  The LORD delivered Lachish into the power of Israel, so that on the second day Joshua captured it and put it to the sword with every person in it, just as he had done to Libnah.  At that time Horam, king of Gezer, came up to help Lachish, but Joshua defeated him and his people, leaving him no survivors.  (Joshua 10:31-33 NAB)