Bruh you gotta refurbish your tinfoil hat

Odd how the US warned us about this attack two weeks ago.
NYT: U.S. Warned About Possible Moscow Attack Before Concert Hall Shooting

And this event advances American geopolitical interests how exactly?

They've killed enough Isis leaders that they could easily have placed a plant to control them, you know, how the CIA did with Al Qaeda.

Coincidence ? I think not.