JFK Assassination Plus General Discussion & Debate > JFK Assassination Plus General Discussion And Debate
Bugliosi's 53 pieces of evidence. And WCR link.
Simon Haggo:
2 words - 'Paraffin' and 'test'!
There is the proof that LHO didn't fire any rifle that day - so assuming the rifle was 'owned' by him naturally infers conspiracy and patsy.
Tim Nickerson:
--- Quote from: Simon Haggo on January 31, 2018, 05:46:27 PM ---2 words - 'Paraffin' and 'test'!
There is the proof that LHO didn't fire any rifle that day - so assuming the rifle was 'owned' by him naturally infers conspiracy and patsy.
--- End quote ---
From the WC testimony of FBI SA Cortlandt Cunningham:
Mr. EISENBERG. A paraffin test was also run of Oswald's cheek and it produced a negative result.
Mr. CUNNINGHAM. Yes.
Mr. EISENBERG. Do your tests, or do the tests which you ran, or your experience with revolvers and rifles, cast any light on the significance of a negative result being obtained on the right cheek?
Mr. CUNNINGHAM. No, sir; I personally wouldn't expect to find any residues on a person's right cheek after firing a rifle due to the fact that by the very principles and the manufacture and the action, the cartridge itself is sealed into the chamber by the bolt being closed behind it, and upon firing the case, the cartridge case expands into the chamber filling it up and sealing it off from the gases, so none will come back in your face, and so by its very nature, I would not expect to find residue on the right cheek of a shooter.
-------------------------------------
Mr. EISENBERG. Did you make a test with the exhibit, with the rifle, 139, to determine whether that left a powder residue on the right cheek?
Mr. CUNNINGHAM. We did.
Mr. EISENBERG. Will you describe that test?
Mr. CUNNINGHAM. Yes; this time we ran a control. We were interested in running a control to find out just what the possibility was of getting a positive reaction after a person has thoroughly washed their hands. Mr. Killion used green soap and washed his hands, and we ran a control, both of the right cheek and of both hands.
We got many reactions on both the right hand and the left hand, and he had not fired a gun that day.
Mr. EISENBERG. This was before firing the rifle?
Mr. CUNNINGHAM. Yes, sir. That was before firing the rifle. We got no reaction on the cheek.
Mr. EISENBERG. Also before firing the rifle?
Mr. CUNNINGHAM. Yes.
We fired the rifle. Mr. Killion fired it three times rapidly, using similar ammunition to that used in the assassination. We reran the tests both on the cheek and both hands. This time we got a negative reaction on all casts.
Mr. EISENBERG. So to recapitulate, after firing the rifle rapid-fire no residues of any nitrate were picked off Mr. Killion's cheek?
Mr. CUNNINGHAM. That is correct, and there were none on the hands. We cleaned off the rifle again with dilute HCl. I loaded it for him. He held it in one of the cleaned areas and I pushed the clip in so he would not have to get his hands near the chamber--in other words, so he wouldn't pick up residues, from it, or from the action, or from the receiver. When we ran the casts, we got no reaction on either hand or on his cheek. On the controls, when he hadn't fired a gun all day, we got numerous reactions.
Simon, so much for your proof that LHO didn't fire any rifle that day.
John Iacoletti:
I'll see your Cortlandt Cunningham and raise you a Vincent Guinn.
"Today, Dr. Vincent P. Guinn called the FBI Laboratory and spoke to SA John F. Gallagher. He advised that since the assassination a large part of their efforts have been directed to the determination of powder residues taken from the hands and cheeks of individuals who have shot a rifle similar to the one reportedly owned by Lee Harvey Oswald. He advised that there appears that triple firing of this rifle will leave unambiguous positive tests every time on the paraffin casts. It further appears that washing the casts with diphenylbenzidine does remove one of the characteristic elements (barium) but such washings do not remove all of the other characteristic element in powder residues (antimony). Further be advised that the tests to date indicate that powder residues are deposited on both cheeks of the shooter after the rifle is fired either one time or three times. It appears, he added, that these results can be obtained even if the paraffin casts are made 2 1/2 hours after shooting the rifle providing that the skin of the shooter has not been washed in the meantime."
Tim Nickerson:
--- Quote from: John Iacoletti on January 31, 2018, 09:27:20 PM ---I'll see your Cortlandt Cunningham and raise you a Vincent Guinn.
"Today, Dr. Vincent P. Guinn called the FBI Laboratory and spoke to SA John F. Gallagher. He advised that since the assassination a large part of their efforts have been directed to the determination of powder residues taken from the hands and cheeks of individuals who have shot a rifle similar to the one reportedly owned by Lee Harvey Oswald. He advised that there appears that triple firing of this rifle will leave unambiguous positive tests every time on the paraffin casts. It further appears that washing the casts with diphenylbenzidine does remove one of the characteristic elements (barium) but such washings do not remove all of the other characteristic element in powder residues (antimony). Further be advised that the tests to date indicate that powder residues are deposited on both cheeks of the shooter after the rifle is fired either one time or three times. It appears, he added, that these results can be obtained even if the paraffin casts are made 2 1/2 hours after shooting the rifle providing that the skin of the shooter has not been washed in the meantime."
--- End quote ---
"We fired the rifle[CE-139]. Mr. Killion fired it [CE-139] three times rapidly, using similar ammunition to that used in the assassination. We reran the tests both on the cheek and both hands. This time we got a negative reaction on all casts."
VS
"powder residues taken from the hands and cheeks of individuals who have shot a rifle similar to the one reportedly owned by Lee Harvey Oswald."
How could you possibly conclude that the latter even matches the former, let alone that it raises it?
Colin Crow:
Nitrate test vs NAA.....apples and oranges.
The paraffin/nitrate test was known to be worthless since the 1930's. It was usually used to try and obtain a confession from unknowing suspects.
The NAA analysis of Oswald's cheek cast gave "interesting" results.....
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