The mother of a 15-year-old Afghan boy tragically killed in a bomb blast on Sunday in Kato Patissia, near central Athens, recounted to police yesterday how the device exploded in her son’s hands. Doctors are still battling to save the eyesight of Zahra Najafi’s 11-year-old daughter and, shortly after visiting her in the hospital yesterday, the 45-year-old told police her daughter was the first to spot the bag containing the device outside the offices of a management association. She said her son picked up the bag but took only two or three steps before the bomb exploded, killing him instantly. Najafi said that she could not remember seeing anybody suspicious in the area but was adamant that the bag had not been there when they passed the same building an hour earlier. Police believe that terrorists had left the device there minutes before it exploded and that it went off before they managed to phone authorities to warn them.