rampage by a lone gunman last november. at first, carroll thought the shooting was a joke. then, after being hit by two bullets, carroll says he came face to face with the suspected shooter, major nadal hassan. >> me and him looked at each other and all you're thinking is [ bleep ]. you know? damn it, i'm dead. he fired off two shots. one went past the ear and the other hit me in the leg. >> reporter: by the time the smoke cleared, 13 people were dead. carroll's company lost three soldiers that day. >> it's bumpy. >> reporter: three months later the company deployed to afghanistan. despite the rounds, carroll was determined to be there with him. >> you won't make it. you won't make it. i like proving people wrong. it's my thing, i guess. >> reporter: in afghanistan, the 20th engineering battalion hunts