Police now say Vegas gunman shot security guard 6 minutes before opening fire on concert
LAS VEGAS - Police have dramatically changed their account of how the Las Vegas massacre began on Oct. 1, revealing Monday that the gunman shot a hotel security guard six minutes before opening fire on a country music concert - raising new questions about why police weren't able to pinpoint the gunman's location sooner.
Officials had previously said that gunman Stephen Paddock, 64, of Mesquite, Nev., shot Mandalay
