Here is Gremlins Research into a 1Hour 13Minute presentation made by a 9/11 investigator called David Chandler, who covers a vast selection of subjects relating to 9/11.

 

Please choose from one of the links below. 

A Pdf file should then be on show.

I have tried to keep it all in time order, but sometimes I do go back and forth when confirming points in the video.