Las Vegas hotel 'didn't immediately report shots'

Federal agents are in a heated battle with MGM resorts after confirming that Mandalay Bay hotel security didn't notify police about a guard being shot by Stephen Paddock until after he opened fire on civilians, despite hotel officials insisting that is not the case.

The federal official, who spoke on the condition of anonymity, claimed that Mandalay Bay did not call police until after Stephen Paddock opened fire, despite security guard Jesus Campos calling down to alert them that he'd been shot.

Thursday's confirmation would mean there was a delay of at least six minutes in notifying the police of what turned into the deadliest mass shooting in modern US history.

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