NET
1 The residents of Jerusalem made his youngest son Ahaziah king in his place, for the raiding party that invaded the camp with the Arabs had killed all the older sons. So Ahaziah son of Jehoram became king of Judah.
Darby
1 And the inhabitants of Jerusalem made Ahaziah his youngest son king in his stead; for the band of men that came in the camp with the Arabians had slain all the elder ones. And Ahaziah the son of Jehoram king of Judah reigned.
KJV
1 And the inhabitants of Jerusalem made Ahaziah his youngest son king in his stead: for the band of men that came with the Arabians to the camp had slain all the eldest. So Ahaziah the son of Jehoram king of Judah reigned.