Bob McIlvaine lost his son Bobby McIlvaine on September 11, 2001. He is an active member of NYC CAN, a group which cosponsors the "BuildingWhat?" TV ad campaign. Tony Szamboti is a mechanical engineer and member of Architects and Engineers for 9/11 Truth, a group of more than 1,350 professionals calling for a new independent investigation into the destruction of Building 7 and the twin towers.
Video here: http://buildingwhat.org/buildingwhat-appears-on-geraldo-at-large-on-fox-news/