Fox is now saying the shooting went on for 20 minutes. If that is true then the scenario of the cops finding and taking the shooter out is more plausible. But many witnesses are still saying “about two minutes”. Having been shot at a time or two it always seemed longer than it was, not shorter for me anyway.
I’m thinking it was a typo and the correct number is 2.
Keep in mind, these casinos can remotely lock a room door so the occupants cannot get out. Localizing a noise on a floor takes but seconds; there was recently a show that demonstrated just how wired a casino hotel really is.
The local vegas abc affiliate channel 13 reported that the gunman fired so many shots that he set off the fire alarm on his floor, which in turn helped the authorities to locate where he was.