on two of the soldiers' helmet cameras. >> is he going to be sold off to another group and be beheaded? is he just going to be killed because he is taking up too much effort? >> november 2004. roy helms is working for the saudi arabian trading and construction company negotiate the catering contracts for the iraqi military and police. >> our office -- it's outside the green zone in the embassy and u.s. army offices. we knew it was a dangerous place, but we never had any trouble with anybody. >> but on november 1st, that all changes. at the time special agent tom o'connor is with the fbi's joint terrorist task force. >> on november 1st of 2004 roy was working in his monseuir district office. >> i was working at my computer, and i saw motion to my left. when i looked up, there were