The evidence in this case derives from a wide variety of different sources. As a result, it is difficult to comprehend how any small conspiracy claim is viable when disputing that evidence in every instance. Just take the rifle. Think of all the information that would have to be faked to link Oswald to that rifle in this case. It isn't just fabrication of the evidence itself, but verification of that evidence from the individuals from whom the evidence was created or obtained. At a minimum, Marina, gun dealers, individual members of the FBI, post office, and DPD, would all have to be convinced to lie about this evidence. And someone would have to track down and destroy all evidence to the contrary - like any records of the rifle in the possession of someone else. The claims of a small conspiracy and doubts about the evidence are mutually exclusive. I understand why a contrarian would want to conflate these but it doesn't add up. Either you accept the evidence as compiled from a multitude of different sources and individuals or you are implying, by necessity, that there was a large conspiracy.