What fictional deaths have made you feel real pain?

Talking about being really affected by a character's ordeal to the point you feel a lot of pain. I guess you can define pain how you like, could be like grief, emotional suffering, or actual bodily pain. I said "fictional" because it's more normal to experience pain when you read someone's memoir about, say, losing a parent as a child or their beloved pet. Because you know it happened. But that's what's powerful about fiction, an author can make you care about characters that are not real.

I remember reading The Outsiders as a young person at school. We were assigned the book, and recall really being affected by the death of Johnny and Dally. Each one was painful in its own way. It really got to me and I couldn't stop thinking about the tragedy of it all. Almost felt like losing a classmate.