Very rarely does a character death tear me up inside for years after I watch it. The death of Fives still tears me up inside. His death does an excellent job at providing a deep sense of injustice. He dies not for reasons of his own fault, but simply because he was loopy. All along he was right, and just no one would take him completely seriously. It cleverly uses the Star Wars lore to execute this plot line, and as I've said I feel the strong emotions it ignites and the uniqueness of it leaves a mighty strong impression.