“When she was gone, I went to the basement, found an empty box, and sealed the teddy bear and the NYU sweatshirt inside with heavy-duty tape. I started thinking about Leigh's ID bracelet and I imagined that one day, maybe years and years from now, I might open the box and say the same thing to my daughter that Leigh might say to hers: This was from a boy I used to know. He was very special to me, but that was so long ago.”