Demonstrators hold letters reading Emanuela Orlandi reading during Pope Benedict XVI's Regina Coeli noon prayer in St. Peter's square, at the Vatican on May 27, 2012. Fifteen-year-old Emanuela Orlandi, the daughter of a Vatican messenger who lived with his family in Vatican City, disappeared 25 years ago (June 22, 1983) when she went to a music lesson. AFP PHOTO/ FILIPPO MONTEFORTE