[Patrick C]

Ben Holmes Wrote:I'm sure it didn't escape your notice that you're trying to explain away a negative NAA test on his cheek cast, while admitting that he was positive on his hands...

Did not escape my notice at all. As you know the test was pretty poor and gave false negatives and positives. Perhaps Oswald used a face cloth or towel or Kleenex.....perhaps there was more residue on his hands - after all he used his hands for the pistol. The only time his face was close to the gunpowder elements was when he fired the rifle.....there are a number of options here to explain why the lone assassin tested positive for hands and negative for face.