They will leave the puzzle in scattered pieces, to be assembled by courageous journalists and political leaders independent of the Swamp. That is, if there are any left.
Why is there no motive for the Vegas massacre? Why did Stephen Paddock have a secret life?
It is terrible to contemplate, but the possibility that Stephen Paddock was an undercover federal operative or informant cannot be ruled out. He may have been either set up or used by ISIS and/or a federal agency in a scheme that backfired.
The feds may have thought they were going to catch ISIS in the act of preparing a major terrorist attack. ISIS terrorists may have thought Paddock was one of them but realized at the last minute that it was a set-up. So they claimed him as one of their own.