From: schuck@fraser.sfu.ca (Bruce Jonathan Schuck)
Subject: Re: PBS SPECIAL
Reply-To: Bruce_Schuck@sfu.ca
Organization: Simon Fraser University, Burnaby, B.C., Canada
Date: Mon, 4 Jan 1993 01:56:08 GMT

> & >>> Joel Grant
>>      Bruce Schuck (me)

>>>and only two bullets.  The fragments from Connally's wrist matched
>>>CE399.  And CE399 was fired from CE139.  The fragments from Kennedy's
>>>brain matched the large limo fragment (the one without copper)
>>>that was fired from CE139 as well as smaller ones found in the
>>>rear of the car.  Between Connally's and Kennedy's body, CE399,
>>>and the limo fragments, there were two and only two bullets as
>>>described above.

>>The fragments didn't match. Some of the trace elements differed by as
>>much as 1100%. Even silver differed by 25% from the wrist fragments to
>>CE399. I would hardly call that a match.

>	The other trace elements, as Guinn carefully explains,
>	are absolutely meaningless.  Sodium, for instance, is
>	almost entirely due to outside infuence, such as perspiration.
>	The two fragment groups with huge sodium content - the
>	three frags from Connally's wrist and the two frags from
>	Kennedy's brain - happen to be the only fragments that were
>	in extended contact with biological tissue, leaving the
>	distinct possibility that the sodium traces are due to blood.

>	The silver in CE399 was 8.8 ppm, plus or minus .5 ppm.
>	(there are limitations in the counting statistics)  The
>	silver in CE842, the wrist fragments, was 9.8, plus or
>	minus .5 ppm.  Thus, even if you abritarily decide that
>	CE399 had 8.3 ppm and CE842 had 10.3 ppm, you still don't
>	have a 25% difference.  Given the known and calculable
>	physical limitations of the procedure, the fragments are
>	a match.  "I was not able to distinguish between them"
>	said Guinn.

Do you have to make things up Joel?
Do you have to badmouth Kurtz while making things up to get you point
across?

I posted this table a long time ago:


This table of data is taken from the HSCA Vol 1 pp 538
study of Neutron Activation Analysis.

It compares the magic bullet CE399, with the fragments
taken from John Connally.

CE399 = "pristine bullet"
CE842 = "Connally Wrist Fragments~

The figures after the +/- are standard deviation

Element/Fragm | CE399       |      CE842      |  Difference
============================|=================|================
Lead %        | 101 +/- 4   |   104 +/- 2     |  None - overlap
--------------|-------------|-----------------|----------------
Antimony  ppm | 833 +/- 9   |   797 +/- 7     |  5.3 % - no overlap
--------------|-------------|-----------------|----------------
Silver    ppm | 7.9 +/- 1.4 |   9.8 +/- .5    |  25 % - just barely overlap
--------------|-------------|-----------------|----------------
Copper    ppm | 58  +/- 3   |   994 +/- 7     |  850 % - no overlap
--------------|-------------|-----------------|----------------
Aluminum  ppm | 0   +/- 0   |   8.1 +/- 1.4   |  Immense 
--------------|-------------|-----------------|----------------
Manganese ppm | .09 +/- .02 |   0.7 +/-  .02  |  22 % - no overlap
--------------|-------------|-----------------|----------------
Sodium    ppm | 5   +/- 1   |   120 +/- 4     |  2400 % - no overlap
--------------|-------------|-----------------|----------------
Chlorine  ppm | 19  +/- 12  |   257 +/- 14    |  1100 % - no overlap
--------------|-------------|-----------------|----------------

Within the standard deviation used by Guinn, there is no overlap
in the antimony, and just barely an overlap in silver.

But please note: CE842 has 25% more silver than CE399.