MGM Resorts International said it was no more than 40 seconds between the time the guard used his walkie talkie to call for help and the gunman opened fire.
Authorities have yet to sort out basic facts around the case of a high-stakes video poker player who murdered 58 people from his hotel room in Las Vegas.
A popular claim about gun-related fatalities revitalized after the 2017 Las Vegas mass shooting is fundamentally accurate, with some allowance for imprecision.