Getting warmer.
I'd summarize, based on his story, that he was indeed poaching when he ran into, and shot, 2 bigfoots. Chickened out. Left. He went back 6-7 weeks later with some known bigfooters, recovered something from under the snow which turned out to be bear, and sent a sample of that to Ketchum who lied about the results of testing.
That can be substantiated by careful study of what each person has said ... including some who were arguing back and forth, not cooperating. All anyone has to do is take the time and make the effort to review the past threads here, various youtube vids, and so on. This explanation fits and accounts for everything. All other explanations require careful cherrypicking ... including deliberately ignoring ... information.
MIB