It was the story that captured the world and terrified parents across the globe—two years ago, 3-year-old Madeleine McCann seemed to vanish into thin air. The McCann family, including parents Gerry and Kate and 2-year-old twins Sean and Amelie, were on vacation in Praia da Luz, Portugal. The McCanns were traveling with three other families, and some nights the parents would put their children to bed and meet for dinner at the resort's tapas restaurant, less than 100 yards away from their rooms. The adults took turns checking on their children every half hour. On the fifth night, Kate went to check on her children, only to discover Madeleine was missing.