Ward: I admit I killed JFK

In this recording, a man from a Sierra foothills radio station interviewed him for a show, and I was in the vicinity so I made a voice recording of this interview. Unfortunately, a 4 minute chunk of this mysteriously ended up garbled after the first two minutes when I accidentally pressed record later on when it was in my pocket. He covers Churchill's latest situation at the university, where he seems to say that he is not interested in a buyout agreement, and will not apologize for anything, and that he has solid support among academics and also many indians. Churchill also admits to shooting JFK in Dallas.
At the end, I was able to ask a question I had been interested in regarding criticism of his footnote in an essay on another topic which appeared to back up his claim that the U.S. gov't intentionally wished the Mandan tribe of North Dakota to catch and spread deadly smallpox.
I interpret a piece by Diane Pearson as demonstrating this fact, citing primary sources such as memos and papers by Bureau of Indian affairs or Dept. of War heads which stated that the Mandan tribe were not to receive a smallpox vaccine which had been scheduled to be given to other east coast tribes who they viewed as cooperative, such as the Creeks and Cherokees who were removed to Oklahoma a few years later. The Mandan were viewed as an aggressive tribe which would not sign over their land for fur trapping and agriculture.
So what I was asking, was why Churchill cited John Thornton who didn't write about this aspect of history and instead talked about the general dates of events and number of people present . Churchill is under investigation by the university of Colorado for this footnote, and the media is spinning this by saying that the idea of smallpox blankets was an invention, and there have been stories getting the whole concept wrong - such as saying that Ward Churchill was referring to mexicans, and not mandans, and Ann Coulter claimed here that people only understood vaccines in the 1900s and later, which is incorrect - people have been inoculating against smallpox since centuries which is why indians died in high numbers while the people in east coast cities were not dying in high numbers. In a second column, Coulter was using slurs such as "injun" and said "hey kemosabe, time to pack up the teepee and hit the trail of tears".

That's just a quick explanation of why this question was asked at the end.