Paddock was known to play video poker and gamble large sums of money on the machines, and played at several properties on the Las Vegas Strip as well as at casinos in Mesquite and Reno. Rouse didn't address the state of Paddock's finances at the time he settled into his room on the 32nd floor of the Mandalay Bay hotel and began firing into the crowd at the concert across the street.

Source: Los Angeles Times December 21, 2017 10:52 UTC