Hotel: Gunman shot at crowd seconds after shooting guard

Even as investigators struggle to unravel the mystery of what motivated a gunman to open fire on a Las Vegas concert crowd, confusion surrounds the sequence of events in the fatal few minutes of the worst mass shooting in modern U.S. history.On Thursday, the hotel where gunman Stephen Paddock opened fire from his high-rise hotel suite disputed the official timeline for the Las Vegas massacre and rejected any suggestion hotel officials delayed summoning police for several minutes after the gunman