X,
Did you know cops take on jobs when off duty? Like protecting banks, or concerts, or, uh, art exhibits? Done all the time in Dallas, just go to Fair Park when a band is there. I see them all the time.
I have no doubt these guys were there to begin with and they were LEO paid to protect the exhibit. They didn't just stand there at the front door but were kept inside, probably in a room, just for emergencies while the uniformed cops and guards were outside.
It was a high profile exhibit where there was a possibility of a nutjob attacking. In this case they tried.. and died.
Mercenaries? Actually when you think about it, anyone who packs a gun for pay, be it a guard or cop, is a mercenary. So what?
You are making a conspiracy theory where there was no conspiracy.
Deaf