Kidnapped US boy held captive four years in plain sight 55 minutes ago ST. LOUIS, United States (AFP) - The joyful return of a missing Missouri boy to his teary-eyed parents raised more questions than answers about what happened during his four years' captivity to a stranger. Shawn Hornbeck, 15, was kidnapped in 2002 while riding his bicycle in rural Missouri and was held, prosecutors say, in an apartment outside St. Louis. He was found Friday as officials searched for another boy, Ben Ownby, 13, who disappeared Monday on his way home from school. Ownby was found at the same...