I remember seeing a WWII Japanese soldier who committed hari-kari using his toes to trigger his rifle... this kid obviously didn't use his toes, and I agree his arms seem way too short to have pulled it off.
I think most of us agree that he did not deserve it in anyway. Apparently he was a street coffee vendor, the family business, and when asked for a free cup quipped "Not even if the Prophet himself returned." That joke apparently offended three armed men who took him away, beat him, then...