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Without talking to Nelson, it is impossible to know whether the polymorphism he found was atypical for a human, or not human at all. At the time of the MonsterQuest episode (Sasquatch Attack), he had only analyzed a single mitochondrial gene, which contained a single polymorphism found between human and chimp mtDNA. In the mitochondrial gene that was tested, there are 35 differences between humans and chimps. Nelson estimated that if the gene he studied contained the only polymorphism, then there would be a 1 in 5000 chance that the sample was human. That probability does not necessarily mean that the polymorphism is found in 1 out of every 5000 humans, but could include the probability of experimental error. If the polymorphism was known to exist in humans at all, then I suspect the probability of it being human would have been much higher, closer to 100%. Nelson clearly and undeniably concludes that the DNA is an unknown primate, closer to human than chimp. But maybe some giant, drunk, poorly evolved injun did stomp his bare foot down on that screw board. Now, you have stated that the polymorphisms Nelson and Ketchum have found are common among Asians and Native Americans; however, it was never identified what gene Nelson tested, or which polymorphism he found. Neither was it revealed for Ketchum's DT result. It is true that Amerindians have a high prevalence of polymorphisms which are rare in Asians, but these are recent mutations, not chimp throwbacks. So it seems you are the one making unsupported and misleading claims. As for Ketchum's current work, all I have heard are some early rumors, and tid-bits that have slipped in private communications. There is a LOT of excitement. That wouldn't happen for something as mundane as a single erroneous or rare polymorphism.