The content originally appeared on: CNN Tunis, Tunisia (CNN)A photograph of Fadi's smiling face is emblazoned on his mother's t-shirt. The then-20-year-old is pictured standing near the shores of the Mediterranean Sea in Tunisia. Above her son's image, 53-year-old Samia Jabloun has written the words 'Dove Sei?' - 'Where are you?' in Italian - in permanent marker. Samia often carries the scraps of IT student Fadi's life, and the clues she's gathered to his disappearance, in a pink plastic folder. […]