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Isabel Dobrin

People cross the Las Vegas Strip where a lone gunman opened fire on the audience at the Route 91 Harvest country music festival on Oct. 1. The gunman, identified as Stephen Paddock, 64, of Mesquite, Nev., fired from a room on the 32nd floor of the Mandalay Bay Resort and Casino. David Becker/Getty Images
Las Vegas Massacre Raises Questions About Hotel Security
Police say suspected gunman Stephen Paddock had “in excess of 10 rifles” in his room at the Mandalay Bay Resort and Casino. How did he get so many guns to his room without raising suspicion?
By Isabel Dobrin  and Tanya Ballard Brown