Official says Vegas hotel didn't immediately report gunfire

Mandalay Bay hotel officials didn't notify police about a shooting in a hallway inside the high-rise until after Stephen Paddock opened fire on the crowd outside at a country music festival, a federal official told The Associated Press on Thursday.The disclosure means there may have been a delay of some six minutes in summoning police to the scene of what became the deadliest mass shooting in modern U.S. history.The official was briefed by law enforcement but wasn't authorized to discuss the mat