2 Kings 15:10
And Shallum the son of Jabesh conspired against him, and smote him before the people, and slew him, and reigned in his stead. And Shallum the son of Jabesh conspired against him, and smote him before the people, and slew him, and reigned in his stead.
Shallum the son of Jabesh entered into conspiracy against Zechariah the king of Israel. He struck Zechariah down openly before the people and put him to death. By that killing he removed the reigning king and took the throne himself. He then reigned in Zechariah's stead as king over Israel.
The deed belonged to a time of strife in which the throne changed hands rapidly. King followed king in quick succession as violence unsettled the kingdom.