Earliest Row of Ejections from Fl 95, W Face, S Side
The first visible ejections during the collapse initiation sequence is
along the 95th floor south edge of the west face. This is obvious in
this gif:
(Use this one to work out when smoke ejecta increases)
(And this one to synch to vertical displacements)
Note the various increases in smoke ejecta from the very beginning.
30 frames per second.
The green line shows when the 95th floor ejection first appears.
The 95th floor ejection appears before any downward movement.
The objects move in the following order:
1) Antenna first.
2) Then fire.
3) Then NW Corner.
A very good view of the 95th floor ejecta at 4:10 in this clip:
https://www.youtube.com/v/oTuvo4b4E9Y&hl=en_US&feature=player_embedded&version=3
The relation is also visible in this gif which includes the forceful row of 98th floor ejections
http://img690.imageshack.us/img690/9109/femrnew.gif
The red arrow highlights the first sequence of visible ejections. There
is also increased smoke activity from 2 locations on the 92nd floor.
The sudden appearance of fire is also visible from the same 95th fl location, seen here:
http://img197.imageshack.us/img197/6329/suckin.gif
There is very little doubt that the 95th fl ejections, a 95th fl fire
eruption and increased smoke activity from the 92nd fl preceeded the
emergence of the forceful row of ejections across the 98th fl.