his men out he said that there was another explosion which took place and thinks there were devices that were planted in the building. (NBC)

67.. Eyewitness speaking in a studio interview says he was about five blocks away when he heard three explosions and turned around to see the building he just got out of collapse. (Studio interview)

68.. An injured witness to one of the towers collapsing said it sounded like 'gunfire' and then all of a sudden he heard 'three big explosions'. (News interview)

69.. NBC's Rick Sanchez reports that police have evacuated an area around the WTC because of a 'suspicious device' thought to be a bomb and say they think a van with explosives in it went off inside the WTC and fear that bombs havebeen planted in, or nearby the buildings. (MSNBC)

70.. BBC's Stephen Evans reports there was a big explosion from 'much, much lower' in the WTC from where the plane crashed. (BBC)

72.. WTC landlord Larry Silverstein says he gets a call from a fire chief about the WTC 7 and he recommends to him to 'pull it' and after they 'decided to pull,' they all watched the 7 collapse. (PBS video)

73.. Firefighter Scott Holowach says he and his crew were just 'hanging out' until tower WTC 7 came down and went right to work to put the 7's fires out. (NY Times)

74.. Paramedic Steven Pilla says he and his crew didn't do any further because they were 'waiting' for WTC 7 to come down. (NY Times)

75.. Firefighter Lt William Ryan