FALLUJA , Iraq ( CNN ) -- `` I can still hear her screams , '' says Mohammed Rasoul , pointing to the sidewalk where he was sitting moments before a car bomb ripped through his street , killing his younger cousin and blowing off his right leg . Mohammed Rasoul stands at the grave where his cousin is buried . He lost his right leg in the attack that killed her . Mohammed , now 14 , shudders as he stands on the street he grew up on in the war-torn city of Falluja . He admits he 's afraid of another explosion . CNN first met Mohammed two years ago . Every day , on crutches he would make the painstaking journey to his cousin 's grave to water a small tree he planted next to it . She was just 6-years-old when she was killed in the car bombing on October 13 , 2006 . Mohammed 's story came to the attention of the Global Medical Relief Fund , a U.S.-based charity that helps children in war zones across the globe . Within months , Mohammed and his mother , Jinan Mohammed , were on their way to the United States , an experience that changed their lives and their perspectives . Watch Iraqi amputee walk again » . `` Before I went to America , the only America I knew was the one that harmed us , destroyed our homes and our lives , '' his mother says . `` But when I went to America , I saw such kindness and humanity . '' At the Shriners Children 's Hospital in Philadelphia , Pennsylvania , Mohammed was fitted with a prosthetic and for the first time in two years , his mother saw her son stand on his own . Her eyes immediately swelled with tears . She had not realized how tall Mohammed had gotten since the attack . Meet other children helped by the Global Medical Relief Fund » . `` My son 's life changed , '' she says , back in Iraq nearly a year after her son 's treatment . `` He used to be so depressed . He would watch boys playing football , and he would be balancing on one leg on the sidelines . Now , he walks tall and proud . '' When they came back to Iraq , there were celebrations for days . Everyone wanted to see Mohammed walk , and everyone wanted to know what America was like . `` Everyone was so happy , '' Mohammed remembers . `` They were just staring at me because they could n't believe that I was walking . '' But having experienced life in America -- a life without fear -- coming back to Falluja , where most of the buildings still bear the scars of war , was a traumatic reality check . His overwhelming fear of another attack came back , even stronger than before . `` I am afraid , '' he says . `` I feel that people are pointing at me saying , 'Look , he was in America ! ' And , you know , here people get killed for that . '' He adds , `` The worst day of my life was when I returned to Iraq . '' Despite his fears , he still makes the daily trip to his cousin 's grave . He waters the tree -- now just a twig after somebody snapped it in half -- and prays for his cousin 's soul and for his own . His only wish is to leave his country and get past the painful memory of what he has endured . `` After what I suffered through here , no , I wo n't ever miss Iraq , '' he says . `` This country is over . Iraq will never return as it was . '' Mohammed has now returned again to the United States with the help of the Global Medical Relief Fund . He 's outgrown his prosthetic and will soon be fitted with a new one .
Iraq boy , one , got a prosthetic leg after a Iraq charity helped him . Mohammed Rasoul now struggles to cope with life in Iraq : `` I am afraid '' Mohammed 's right leg was blown off in a October 13 , 2006 attack that also killed his cousin . His mother wishes all Americans could see the generous nature of Iraqis .