This footage is unique for its pre-demolition fireball (time unknown) shooting up from lower floors. For an investigation of this phenomenon, please watch Achimspok’s “The NIST predecisional WTC7 Report part 3 of 5.”
In the NIST Report the video source is “Unknown.” Ownership/copyright is credited to FOX News Network, L.L.C. – although the clip was aired on CBS at 7:35 PM on 9/11, for example… and on ABC at an unspecified time. One of the longest versions of this video comes from aparchive.com (YT link above or register at aparchive.com and search for 314927).
Raw NIST Cumulus files: CBS-Net Dub5 14 (fireball in 15) and CBS-Net Dub6 45 (fireball in 44). UPDATE: High quality, extended length mpeg-2 found in release 25, folder 42A0122 – G25D33
Window Shot (Unknown, FOX)
YouTube 1 & 2
