The reign of Jehoram is one of the darker chapters in Chronicles. It raises the question we ask whenever we encounter senseless harm: why would someone do that?
The Bible never pretends evil isn't real. But it also insists that evil never gets the last word. For everyone who has been on the receiving end of someone else's cruelty, there is a God who sees, who grieves with you, and who is writing a longer story than the one you can see right now.