Sounds like a bunch of nonsense, certainly to all of us who have read the thousands of words Pat, Joe McBride and many others have written to educate us about the real evidence in this case.
Regarding the paper bag, there is an "Allan Ford" over on that other JFK Forum who has speculated that Oswald tossed the paper bag when he "went outside to watch the parade" (and possibly perform some kind of false-flag related function). Interesting speculation, apparently not taken very seriously over here.