91.   It had two floors in the north tower.

92.   Iron workers have been laboring to bring down the last section of the north tower for much of the past week.

93.   Its north tower is taller than the south one, he pointed out.

94.   Just as she arrived, an airliner slammed into the north tower, where her children were working.

95.   Laborers also dismantled the last standing remnant of the north tower.

96.   Lee was on board the hijacked plane that crashed into the north tower.

97.   Most of the footage was shot by Jules, who accompanied firefighters to the north tower where they set up their first command center.

98.   Only about seven stories of the north tower remained, its girders bent outward like a stripped cigar.

99.   Only about seven stories of the north tower remained, its girders bent outward.

100.   The camera, taping firefighters checking a gas leak in lower Manhattan, pans up and captures the first plane slamming into the north tower.