Remember this?
As survivors poured into nearby streets and buildings, the police swarmed the Mandalay Bay, conducting a room-by-room search starting on the 29th floor, Sheriff Lombardo said. At one point, he said, Mr. Paddock fired at them through the door of his suite, wounding a hotel security guard. The officers backed off, he said, and then SWAT teams went in.
And this? (he had been funding his gambling on her account, she would not have needed to take her card on holiday with her.. What a strange thing..
Source https://www.nytimes.com/2017/10/02/us/las-vegas-shooting-live-updates.html?
The police also searched for Mr. Paddock’s girlfriend, Marilou Danley, thinking that she might have been with him, in part because he had been gambling using a Players Club Card, a kind of casino debit card, that was issued in her name. Later, it was determined that Ms. Danley was out of the country. The police searched the couple’s home in Mesquite and another house Mr. Paddock owned in northern Nevada.