It could be a rogue ninja from another village who has a vendetta against Naruto. This ninja might have set a very elaborate trap that made it seem like Naruto was killed and left his body in a place where his friends would find him and think he was dead.
Well, in many cases, works titled 'Left for Dead' are indeed inspired by true events. It could be about someone who was in a life - threatening situation, like a shipwreck or being lost in the wilderness, and was abandoned by others. The stories usually focus on how the person managed to survive through their own strength and determination.
Well, that really varies. Different comics handle character fates differently. Maybe you could give me a hint about the comic's title or genre to help me better answer your question.
Glenn does die in the comic. It was a tragic and impactful moment that changed the course of the story. The circumstances of his death were intense and left a lasting impression on readers.