I started as an objective student in High School, who wrote in a paper for history class that President Kennedy had been assassinated by a man named Oswald. I had no opinion on it whatsoever, but assumed it to be true as it was given as a fact in the few books on JFK we had in our school library. But I guess it qualifies me as a LN at that time.
That changed when I had to review a (bad) book on JFK at University and found out there were a lot of questions about the validity of the conclusions of the official Report. It stimulated me to read more on the assassination, focusing on books written by critics/conspiracy theorists. Unfortunately I found out that many of their claims are not based on a correct interpretation of the evidence, to phrase it politely.
Now I consider myself to be a Warren Commission critic and support the HSCA conclusion of a 'probable conspiracy.' I have reasonable doubt about Oswald's guilt or even involvement, but try to keep an open mind. Like Mr. Cole above, I believe that a relatively small, but powerful and well-funded group was behind the assassination.