I can think of a few agencies that might be sweating. Or maybe it'll come out that it really was just a random nutjob. Or they'll redact something and conspiracy theorists will forever say that the crucial piece of evidence is contained under the last remaining Sharpie ink
Bullseye. That's exactly what will happen. They have much more to gain by keeping some of the mystery. If they hand out a black and white explanation they have 1 less leverage to manipulate the mass.
Just because the government messed up the first investigation in a rush doesn't change the fact that they came to the correct conclusion as the following decades has shown. It's possible there's something embarrassing to the fbi in those files but it wouldn't be assassination of prominent figures
Heck, it doesn't matter even if there are zero redactions. I saw a good cartoon along these lines: Trump agrees with the need to release any and all info about the JFK assassinations, which shows that all the evidence points to Oswald being the lone killer. The conspiracy theorist responds "This goes deeper than we thought..."
I'm all for releasing all the known evidence about the case, but a large swath of people will never be satisfied unless they hear exactly what they want to hear. There are still a sizable number of people who think the Moon landings were faked, despite all evidence to the contrary.
