This was due to passengers fighting back against the hijackers after finding out through phone calls what had happened at the Pentagon and to the Twin ... tower. He was located on the 97th floor.

On September 11 2001, two planes were deliberately flown into the Twin Towers in New York ... which notably feature a description of which floor of the tower they were on when the attack began.

On 11 September, 2001, Mr Clark was at work on the 84th floor of the World Trade Center’s South Tower. At 9:03am, Flight 175 struck floors 77 to 85 of the building, with Mr Clark’s office at ...