Then Hoshea son of Elah led a conspiracy against Pekah son of Remaliah. In the twentieth year of Jotham son of Uzziah, Hoshea attacked Pekah, killed him, and reigned in his place.

2 Kings 15:25
Then his officer, Pekah son of Remaliah, conspired against him along with Argob, Arieh, and fifty men of Gilead. And at the citadel of the king's palace in Samaria, Pekah struck down and killed Pekahiah and reigned in his place.

2 Kings 15:29
In the days of Pekah king of Israel, Tiglath-pileser king of Assyria came and captured Ijon, Abel-beth-maacah, Janoah, Kedesh, Hazor, Gilead, and Galilee, including all the land of Naphtali, and he took the people as captives to Assyria.

2 Kings 15:31
As for the rest of the acts of Pekah, along with all his accomplishments, they are indeed written in the Book of the Chronicles of the Kings of Israel.

2 Kings 17:1
In the twelfth year of the reign of Ahaz over Judah, Hoshea son of Elah became king of Israel, and he reigned in Samaria nine years.

And Hoshea the son of Elah made a conspiracy against Pekah the son of Remaliah, and smote him, and slew him, and reigned in his stead, in the twentieth year of Jotham the son of Uzziah.