On the evening of Nov. 19, a bomb dropped by an Israeli aircraft struck the Jabalya refugee camp home of the Hijazi family, tearing it down and killing Fouad Hijazi and two of his infant sons. This horror story was one of many told by neighbors and loved ones, and documented by Human Rights Watch (HRW) (among other groups) in the aftermath of the Israeli onslaught on Gaza last year. In addition to crushing Fouad and his two sons — Mohamed, 4, and 2-year-old Sohaib — the bomb that leveled the two-story cinderblock house wounded Fouad’s wife, Amna, and the rest of their children.

The aftermath of this tragedy was documented by Swedish photographer Paul Hansen, who captured the funeral procession taking the two toddlers to their burial site. The picture, which shows weeping men holding the children shrouded in white cloth with nothing showing but their listless faces, earned Hansen the 2012 World Press Photo award. Hansen’s picture, one of the many searing images of the eight-day war in Gaza, was taken just one day after the Hijazis were killed, as their bodies were marched through the neighborhood to the cemetery and as their mother lay in an intensive care unit, unable to receive or be consoled by mourners and now homeless.

A staff photographer for Sweden’s Dagens Nyheter newspaper, Hansen submitted the image as just one of more than 103,000 photos sent by 5,666 photographers from 124 countries. Awards in nine themed categories were given to 54 photographers from 32 countries under what is widely known as one of the most prestigious prizes in photojournalism.

Hansen’s picture is telling: Out of last year’s 165 Palestinians killed throughout Israel’s “Operation Pillar of Defense,” at least 33 were children, according to numbers provided by the UN Office for the Coordination of Humanitarian Affairs. During the November onslaught, “several Israeli missiles and a bomb struck civilians and civilian objects, such as houses and farm groves, without any apparent military objective,” said Human Rights Watch, which determined earlier this week that these air strikes were in violation of the laws of war.