Nelson Gross led an outsized life--one in which he played many roles: father, brother, husband, politician, entrepreneur. When he was killed by a couple of teenagers in a botched abduction and robbery, the murder shook his family in predictable and terrible ways. For his daughter, Dinah Lenney, the parent of her own young children, the loss sparked a self-reckoning that led to this book, which is both a meditation on grief and a coming of age story...