Dallas Conspiracy

I came across this online PDF version of one of the nuttier JFK assassination items. I have the original 1968 edition which I found on eBay. This one was updated in 1993. Author Nord Davis maintains that George de Mohrenschildt, standing on a street corner, killed Kennedy with a machine pistol, getting off at least 21 shots, and killing a female bystander in the process. No one noticed and they covered it up.