My father, Richard Lakin, a 76-year-old retired elementary-school principal from Connecticut, was on a bus in Jerusalem last October when two young Palestinian men boarded and began shooting and stabbing passengers indiscriminately. Two passengers were killed that awful day and 16 injured, including my father. Despite the efforts of first responders and the nurses and doctors at Hadassah Ein Kerem Hospital, my father died two weeks later. He had been shot in the head and stabbed multiple times in the head, face, chest and stomach.

Over...