You don't need to find it.

The Homeland security, plus suing of the victims, plus tv reporting it as a drill, plus the fake gun fire, plus the insider trading, all equates to such a shitty hoax that I'm embarrassed to have been duped for so long.

One or two of these details would be suspicious. All of them combined are so far beyond improbable, that accepting the official story of some guy with a hotel room full of machine guns and rifles and no credible security footage makes this story completely implausible.

Casino hotels are completely cover with super security cameras. There's no possibility.