Pentagon Plane Puzzle David Chandler Going Beyond Speculation

Two complimentary videos are combined here in the order that they were presented at the 9/11 Truth Film Festival in Oakland, CA, on Sept 10, 2015.
The first video is a preview of the witness section of a forthcoming film by Ken Jenkins titled "The Pentagon Plane Puzzle". It features video testimony by 30 of the 180 known witnesses to the Pentagon event.
That is followed by a PowerPoint presentation by David Chandler titled "Going Beyond Speculation–A Scientific Look at the Pentagon Evidence". In post-production, Ken Jenkins of 9/11 TV, who videotaped David's presentation, added many additional graphics to the live presentation.
David Chandler's presentation starts at 26:40.

Update: Posted March 15, 2016, is version 3 of "The Pentagon Plane Puzzle", which combines a somewhat shorter and greatly enhanced version of David Chandler's presentation with the video testimonies of 30 witnesses into one integrated film. While this newer version is still a work-in-progress, it has many additional graphics and a number of added film clips. The filmmaker recommends watching this improved version, which can be found here:
https://youtu.be/YsadQzNhT-Q

To learn more about the film THE PENTAGON PLANE PUZZLE, about the Pentagon plane controversy, and to access the most up-to-date information on that subject, please click here: http://www.9-11tv.org/the-pentagon-plane-puzzle

The music used in this short film, and in the full-length versions, is by Fritz Heede. See his website here: https://fritzheede.com/