WTC7 - The Gash and How It Got ThereSubmitted by fireant on Mon, 01/27/2014 - 03:24
The column location of this lower hole is uncertain, but it appears to be in the vicinity of column 20:
How It Got There...
Collapse sequence begins at 1:25. Piece of interest appears at 1:34:
A north view confirms it lines up with WTC7 near column 20