linked - Investigating the Terror

importantly, the quantity of explosives, because the placement of
the device, the physical confines or lack of confines that the
device is exploded in and around, was significantly impede -- or
go into the determination of how much explosives were used
and, in some cases, what type of explosive was used.
And we try to show this actually during our training in that you
can't say that, as example, three cartridges of dynamite were
used in this explosion in the ground because we can put three
cartridges of dynamite on top of the ground, shoot that, take
three cartridges of dynamite and dig a hole and put them in a
hole and then we can take three cartridges and put them in a
hole and cover it up, and you'll have vastly differing damages
there.
On the other hand, Williams' estimate of the quantity of explosives was
quite broad: 1000-1500 pounds, with 1200 pounds as a ballpark figure.
The thrust of his trial testimony about quantity was that it was a rough
estimate: you're able to kind of estimate how much explosive. Viewing
agent Williams' estimate of weight in that light, we conclude that it was
within his expertise to render such an opinion.
C. Williams' Testimony Regarding the Attempt to
Modify Whitehurst's Dictation
Whitehurst alleges that Williams gave inaccurate testimony regarding an
attempt by Williams to modify a report (dictation) written by Whitehurst.
The evidence supports Whitehurst's claim.
On June 15, 1993, Whitehurst submitted dictation to Williams for inclusion
in the official reports of the case. The dictation included the following
language:
Solid probe mass spectrometry was also utilized to analyze
specimen Q15 for the presence of residues of urea nitrate. The
results of this analysis were consistent with the presence of urea
and nitric acid. However these materials are also found from this
analytical method following analysis of other materials such as