Dear anyone who cared about Cameron, I was the driver of the “other” car. The police and my mother and my father and plenty of people are saying that I didn’t kill her. But I know I did. That’s what her parents must believe. And my brother, Jack. He always sees what’s true. I want to tell him how sorry I am about the accident. I want to say a lot of things to him and to everybody — like how Cameron was smart and beautiful and kind in a way that isn’t all that common in high school. Like how much Jack loved her and how sometimes I can hear him crying through the wall at night. I want to say how bad everything can get. In one split second. Upside down and shattered. Just like that. Wrecked.