Iranian photographer Arash Khamooshi captured the moment a mother spared the life of her son's killer. "At 6:20 am Balal was led out in handcuffs by prison guards. He was wearing a blindfold and they put the noose around his neck," he writes. "He cried out for forgiveness but the mother, who under 'qisas' -- the sharia law of retribution -- has the right to kick away the chair on which the condemned man stands, said she was not willing to forgive."