Most of what you read debunks specific facts but not the ultimate conclusion. How do you debunk a conspiracy theory like the one about the mafia and LBJ. The people privy to those actions are long gone and not too many witnesses in the first place. Giancana and Roselli are not exactly singing birds. But Bonanno claimed the mafia killed hm. So yeah its hearsay.
But also is motive and opportunity. Both the mafia and LBJ had motive and the power to pull it oof.
The advantage of having is apathy is you set it up to look like the patsy did it.
So, o, I don’t believe eat case is closed, just more weight one way or the other.