I have no direct knowledge. I do, however, have some understanding of false flag operations, media influence operations, covert operations, and high-level political and financial crime networks. Las Vegas appears to be a classic false flag operation with both financial and political aspects.
UPDATE 23: 25 August 2018. Feds Scramble as Vegas Shooter’s Girlfriend Reportedly Listed FBI as Place of Employment: A bombshell revelation appears show that the Vegas shooter's girlfriend, Marilou Danley, may have been an asset of the FBI.