For example, as soon as he had control of Judah, he arrested and killed the officers who had murdered his father.
After Jehoram had taken control of Judah, he had his brothers killed, as well as some of the nation's leaders.
But the children of those officers were not killed; the LORD had commanded in the Law of Moses that only the people who sinned were to be punished.
But the people of Judah killed the murderers of Amon and made his son Josiah king.
If you plan in advance to murder someone, there's no escape, not even by holding on to my altar. You will be dragged off and killed.