Why is it important that johnny died after the rumble?

Johnny's death after the rumble serves as a poignant turning point in "The Outsiders," highlighting the senselessness of violence and the profound impact of loss on the characters. His passing deepens the emotional stakes for Ponyboy and the other Greasers, forcing them to confront the harsh realities of their lives and the consequences of their actions. It emphasizes themes of innocence, the fragility of life, and the desire for belonging amidst conflict, ultimately pushing Ponyboy toward a path of introspection and growth.