How did he do it? Without figuring this out, any investigation was meaningless.
Louise, although unaware of what exactly Dean was looking for, could only follow his lead and look around. In doing so, she actually stumbled upon a difficulty. Many tourists came here for vacation, and many women entering and exiting the restrooms were dragging large suitcases. Solely from monitoring, it was difficult to determine whether those rolling suitcases contained clothes or people!
And not far from the restroom was the side door to the parking lot. Some groups on a tour could get on a bus to the hotel directly from there and leave the airport. Some being picked up by friends or family would also leave from that side. Then there were locals from Las Vegas who had just gone on a short trip, leaving their cars in the parking lot. Upon reaching it, they could drive home. This would make their investigation more difficult.
