. >> one of our very best producers was a woman named elliott walker. >> elliott, can you hear me?>> yes, hi, katie. >> tell me where you are and what you saw. >> elliott lived down in the area too and she was a real pro. elliott had been there, done that, seen everything. and when she started to describe what she was witnessing from a real journalistic point of view the story started to take shape for me. >> from where i was on the street a moment ago, you can in fact see smoke leaving the building on three sides. it seems to be coming out on at least four or five floors. >> but then all of the sudden elliott walker said something to the effect of "my god, there is another one". >> oh another one just hit. something else just hit. a very large plane just flew directly over my building and there has been another collision. can you see it? something else -- and that looks like a 747. >> i don't remember ever having seen an explosion like that. i knew how big those buildings were. i mean, they were massive. the idea that something could hit the southern side of that tower and create

which was unbelievable. >> elliott walker said it was a big plane. i was looking in the distance and saw a small plane which might have been a helicopter -- to see this plane come into the picture. >> there it is. >> that is a big plane. and i mean, it's hard to imagine, it's a 737 we're now being told. flying directly into the midsection of the -- the eastern tower of the world trade center. >> needless to say, it's pandemonium, i am sure, down there, and we gathered that from the eyewitnesses with whom we spoke and how terrifying this was for them to see. you can only imagine as you get closer to the twin towers, that a new york landmark, how -- what the scene must be like there. >> you talked about the building looking like they've buckled. they're designed to have a two-degree sway in either direction because of the height of the building, being able to deal with the wind and stress, but something like that, probably, more than it was designed. we want to go out to jane derenowski who is a television producer here in new york. jane, can you hear

another eyewitness, elliott walker, who is actually a today show producer. tell me what you saw. >> i was walking down the sidewalk, delivering my young daughter to school. we heard a very loud sound. the kind of sound when a plane is going fast past you. followed by an enormous crash. i don't think we can feel shockwaves but we sort of felt like we did. we could see the trade center immediately between the other buildin buildings. an enormous fireball was visible immediately. a secondary explosion i think. now from where i was on street a moment ago, you can see smoke leaving the building on their sides. it seems to be coming out on at least four or five floors. the air is filled with hundreds of thousands of pieces of paper that is just kind of floating like confetti. obviously, we're sensitive to this kind of thing in this neighborhood. >> have you seen any evidence of people being taken out of the building? of course the major concern is -- >> oh, my goodness -- >> -- human loss, do you know -- >> oh, another one just hit! something else just hit! a very