A German boy named Helmuth overheard his father, a physician, discussing killing their family in 1945 out of fear of Allied revenge. The next day, Helmuth's father took him into the woods, where they had a happy last time together before the father shot himself. Traumatized, Helmuth refused to eat at home for nine years out of fear his mother would poison him. After World War II ended, the Nuremberg trials prosecuted Nazi war criminals for crimes against humanity and genocide, which included the mass murder of 6 million Jews and others.