I am not the only parent with tears, but I cannot help thinking that mine are unique. I watch Jasper and Daisy dressed up—Jasper in the white oxford with its itchy collar, Daisy in her grandmother’s dress, white socks, and Mary Janes—standing with their classmates, immaculate, nervous, and excited, and I remember Nic shining, too, standing tall, his life ahead of him. Where can he be?