sure they said possible hijacking. >> reporter: ballinger is footnote 69.rs ago on september 11th he was a dispatcher for united airlines in chicago, handling 16 flights leaving the east coast and heading west. including united's flights 175 out of boston and flight 93 from newark. >> first indication i had 175 was on the stewardess on board called in her contact which was the maintenance center that they were hijacked. >> reporter: in united airlines san francisco maintenance office, supervisor rich bellme was working one last day before leaving the airline for a new job. >> i was looking around the room, drinking my coffee, realizing it was my last day, kind of bittersweet. and i heard a commotion -- someone talking about something hit a building in new york. i go, that's odd. >> reporter: at that moment, one of his workers catches his attention. bellme is about to become footnote 81. >> he's walking up towards me, white as a ghost. i can just tell something's wrong. he says, i just got a call from 175. the crew has been killed, the plane has been hijack.

still, ballinger remains haunted by the what ifs, still trying to put 9/11 in his wake. when we left him, he and his wife were waiting to go sail away again. rich bellamy who took the phone call from flight 93 now works for a private aviation company. >> again, time went by so quickly. >> nelson garabito is still with the secret service. he's a special agent in charge of the protective intelligence division. vaughn alex and mike touhey, the airline ticket agents who first suspected trouble on 9/11 like the other footnotes, still live in the shadow of that terrible day. the day after the attack, they looked at the suspicious names and the faces of their passengers once more. this time with the fbi. >> the fbi came by my house here. they had a full photo array of all of these people. they said here, here's a sheet. can you pick out the two? ata was easy because he's got this sallow look of death about him. >> when i came to the name hamzi, it was an unbelievable moment. in less than a second i saw them, i remembered the brothers. i remembered the whole transaction. and i j

. >> reporter: the united airlines dispatcher, ed ballinger left after 44 years.lked to the relatives of those who died on united flight 93, the flight he tried to warn to say he was sorry. 9/11 commission investigators say there was nothing more ballinger or any of the footnotes in this story could have done. still, ballinger remains haunted by the what-ifs. still trying to put 9/11 in his wake. when we left him, he and his wife were waiting to sail away again. rich belmy who took the phone call from flight 93 now worked for a private aviation company. >> time went by so quickly. >> reporter: nelson garrabido is with the secret service in charge of the protective intelligence division. the airline ticket agents who first suspected trouble on 9/11, like the other footnotes, still live in the shadow of that terrible day. the day after the attack, they looked at the suspicious names and the faces of their passengers once more. this time with the fbi. >> the fbi came by my house. they had a full photo array of these people and said, here's a sheet. can you pick out t

should i said possible hijacking. >> ballinger is footnote 69. on september 11th, he was a dispatcher for united airlines in chicago handling 16 flights leaving the east coast and heading west. including united's flight's 175 out of boston and 93 from newark. >> all i know is that there was trouble and i wanted to warn everybody. >> one of those flights, ballinger tried to warn are the airlines version of an e-mail, united flight 93. >>> i was sending out messages one after the other. i think i sent 122 messages in a short time, an hour or two. i don't know what it was. like screaming on the keyboard. at that time, this huge tv's that we have came on with cnn. >> this just in, you are looking at obviously a very disturbing live shot there. that is the world trade center. >> i saw the second airplane, which i didn't know at the time was my airplane. 175 hit the second tower. i thought the succinct method of doing the least amount of work. beware, cockpit intrusion. i sent to owl my 16 flights. before that was off, 93 called up and said they had mi

. >> reporter: for six years, ed ballinger has been sailing away from his memories. refuge, this boat named "the great old broad." he's been afloat with his wife trying to escape the memory of a few brief words, beware cockpit intrusion. >> lock the so and so door, so i said hijacking alert, hijacking. so they said a possible hijacking. >> reporter: he is footnote 69. ten years ago on september 11th, he was a dispatcher for united airlines in chicago, handling 16 flights leaving the east coast and heading west. including united's flights 175 out of boston and 93 from newark. >> all i know is that there was trouble and i wanted to warn everybody. >> reporter: one of those flights, ballinger tried to warn by the airline's version of an e-mail, united flight 93. >> i was sending out messages one after the other. i think i sent 122 messages in a short time, an hour or two, i don't know what it was. it's like screaming on the keyboard. at that time, the huge tvs that we have came on with cnn. >> this just in. you are looking at obviously a very disturbing live shot there.