2 Kings 15:25 NIV

25 One of his chief officers, Pekah1 son of Remaliah, conspired against him. Taking fifty men of Gilead with him, he assassinated2 Pekahiah, along with Argob and Arieh, in the citadel of the royal palace at Samaria. So Pekah killed Pekahiah and succeeded him as king.

References for 2 Kings 15:25