If there was nothing to see, why have multiple Presidents extended the release dates of all the investigative data on the shooting? It was 60 years ago, pretty much anyone involved at this point is long since retired or passed away, yet both the CIA and FBI fight the FOIA requests. The only possible explanation is someone were supposed to trust / like did it - internal or external.
I believe we landed on the moon. I bet we could not do it today - sad but likely true. Elon maybe could.
If you spend any time on the Great Plains, the flat earth idea seems more plausible