Zimri totally wiped out the family of Baasha, just as God's word delivered by the prophet Jehu had said
- wages for the sins of Baasha and his son Elah; not only for their sins but for dragging Israel into their sins and making the God of Israel angry with their stupid idols.
The rest of Elah's life, what he said and did, is written in The Chronicles of the Kings of Israel.
Zimri was king in Tirzah for all of seven days during the twenty-seventh year of the reign of Asa king of Judah. The Israelite army was on maneuvers near the Philistine town of Gibbethon at the time.
When they got the report, "Zimri has conspired against the king and killed him," right there in the camp they made Omri, commander of the army, king.
Omri and the army immediately left Gibbethon and attacked Tirzah.
When Zimri saw that he was surrounded and as good as dead, he entered the palace citadel, set the place on fire, and died.
It was a fit end for his sins, for living a flagrantly evil life before God, walking in the footsteps of Jeroboam, sinning and then dragging Israel into his sins.
As for the rest of Zimri's life, along with his infamous conspiracy, it's all written in The Chronicles of the Kings of Israel.
After that the people of Israel were split right down the middle: Half favored Tibni son of Ginath as king, and half wanted Omri.
Eventually the Omri side proved stronger than the Tibni side. Tibni ended up dead and Omri king.