Ghias Aljundi fled Syria after four years of imprisonment and torture at the hands of the Assad regime. In 2015, he returned to the Mediterranean to help the thousands of refugees from his homeland arriving on the beaches of Lesbos. In October, photographer Lefteris Partsalis captured the moment when Ghias called for help for a Syrian boy he feared dead, in an image that sums up the horror and compassion that have defined 2015