I know that I read several contemporary newspaper & magazine articles that raised questions about the event. Plus, I think it was Life that showed the pictures and stories of all those people who were "suicided", murdered, etc. Dorothy Kilgalen was one. I always thought she was silly on that TV game show, but she was a pretty smart cookie. As a legitimate journalist, she was getting too close to the truth.
One very strong memory I have of Kennedy is that I hated him almost as much as I do x42. I STILL blame him for setting into motion those events and laws that have weakened our country. After all these years, it is nice to see other people coming to like conclusions. I am finally justified after standing alone in those days. From the perspective of history, Americans are realizing that Kennedy was NOT a "god", and "Camelot" never was.
When Jackie died, the beans were spilled how she put the notion of "what we had, ever so briefly, was Camelot" to a few journalists.
When JFKJR died, it was leaked how he was rehearsed in his salute and that his signal to salute as his dad's coffin approached was his mother's release of his hand.
There are many papers (and audio tapes) that are sealed at JFK's library, maybe some of us will live long enough to learn their contents.