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.
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Iraq boy, 14, got a prosthetic leg after a U.S. charity helped him
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Mohammed Rasoul now struggles to cope with life in Iraq: "I am afraid"
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Mohammed's right leg was blown off in a 2006 attack that also killed his cousin
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His mother wishes all Iraqis could see the generous nature of Americans
"But when I went to @placeholder, I saw such kindness and humanity."
She had not realized how tall @placeholder had gotten since the attack.
But having experienced life in @placeholder -- a life without fear -- coming back to Falluja, where most of the buildings still bear the scars of war, was a traumatic reality check.