If you mean that :
https://pbs.twimg.com/media/DL4Vf1BW0AEiXUI.jpg , it was published on October 11 already. And even if it seems to be, indeed, an interesting Las Vegas Police's document, (about the "Many Shooters" hypothesis) it's not absolutely clear : Investigations on concrete facts cited there, are needed.
As for the latest relevant news, one concerns, indeed, the unexpected death of an eyewitness who had published at the Web her clear belief that there were many shooters : This dates from Friday, October 13. But investigation is also needed there, (f.ex. about her death for alleged "natural reasons", the reason for which her testimony was reportedly erased from the web, after her death, etc).
It's true that even several mainstream Medias have already felt that Facts don't fit the official story about a "Lone wolf". But many Investigations are still necessary, in order to find, at last, the full truth about what really happened in this horrible, tragic story, where too many Human beings were atrociously targetted and killed like rabbits...
As for your question about the Timing of revelations related to the "Austrian Elections", it cannot be excluded, at least partially, but the whole issue seems to be much more wide.
