The Nativity street in Bethlehem is relatively empty for a Sunday afternoon, with the exception of a small group of African pilgrims who stand by a side-walk souvenir seller. “Amjad loved this place, he spent hours here with his friends”, says Osama Abu Sultan with a low tone, almost whispering to himself. Osama Abu Sultan drives his car in front of a by-road through which the sight of the Manger Square is gradually revealed from behind souvenir shops. “The day he was killed, I had driven him here myself, as I always did”, recalls Osama Abu Sultan, remembering the last hours of his 14-year-old…