Do conspiracy believers really want to endorse the findings of the HSCA? Lone assassin believers largely will because the acoustic evidence they used for the "probably assassinated as a result of a conspiracy" was wrong. Otherwise, it was pretty good; not perfect but good.
If we add this investigation to the Warren Commission Report, the Rockefeller Commission, the Church Committee, the news media investigations, the investigations by reporters like Hersh and Weiner, and the research by historians the only sensible conclusion supports the theory that it was one man - Oswald - with a rifle. The other claims are simply people using the assassination to express their grievances with the CIA or "deep state" or whatever monsters they have swirling in their heads.
