Blood on the bed. That's what 12-year-old Tamar Fogel saw last week when she opened the door to her parents' bedroom in Itamar, Israel. The blood covered the blankets and the bodies of her father, Rabbi Udi Fogel, and her 3-month-old sister, Hadas. In the other room, her mother, Ruth, lay murdered. So did her brothers, Yoav, 11, and Elad, 4. Five members of the Fogel family were slaughtered in their home last week because they dared to live on historic Jewish land. They were not murderers and were not occupiers. They were people who simply wished to leave in...