We still, all those years later, have exactly as much independently-verified evidence to support that claim as we do to support a claim that in reality, the murder of thousands of Minmatar public servants, and even the Elder Fleet itself, was all an EoM plot to destabilize the cluster and drive the Empire and Republic into open warfare.
None. There isn’t a single shred of verifiable evidence that the murderers’ claims were accurate. There’s been no investigation of them. No accountability whatsoever.