movie, book, or tv show

I want to see a movie called I don't know. it is about a boy named Jeremy. He is 15 years old. He is a hunter that mistakes a guy for a deer. He accidently kills the guy. He has to go on trial. He gets life in prison and he writes a book when he is in the pen. It pretty much tells how people in the jail act and live and what kind of food he eats and how the food is. I really fell sorry for the port kid because I could see myself doing that by accident. It would be a tragedy.