9/11 Free Fall 7/2/15: Gary Mackenzie, Explosives Expert

Gary Mackenzie is a volunteer with AE911Truth who has had extensive experience with drilling, blasting, and demolishing buildings. In this episode of 9/11 Free Fall, he talks about his career; the controlled demolition evidence from the destruction of World Trade Center Buildings 1, 2, and 7 on September 11, 2001; and the operational strategies that the perpetrators of those demolitions could have chosen to carry out the crime of the century.

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