Now when Jehoram was risen up to the kingdom of his father, he strengthened himself, and slew all his brethren with the sword, and divers also of the princes of Israel. 2 Chronicles 21.4And then he did something that really pissed off God: he made all the people commit fornication.
Moreover he made high places in the mountains of Judah and caused the inhabitants of Jerusalem to commit fornication. 21.11When the news got to Elijah, he sent Jehoram a letter telling him he was in big trouble with God. God will smite his children, wives, and all the people of Judah with a great plague.
Behold, with a great plague will the LORD smite thy people, and thy children, and thy wives. 21.14And he will smite Jehoram with a disease of his bowels until his bowels fall out.
And thou shalt have great sickness by disease of thy bowels, until thy bowels fall out. 21.15God first "stirred up" some people to carry away his sons and wives.
The LORD stirred up against Jehoram the spirit of the Philistines, and of the Arabians, that were near the Ethiopians: And they came up into Judah, and brake into it, and carried away his sons also, and his wives ... save Jehoahaz, the youngest of his sons. 21.16-17And then God smote Jehoram in his bowels with an incurable disease.
After all this the LORD smote him in his bowels with an incurable disease. 21.18For two years Jehoram suffered from the disease, until his bowels finally fell out.
After the end of two years, his bowels fell out by reason of his sickness: so he died of sore diseases. 21.19God's next killing: Jehoram's sons