A new revelation in the investigation into the Las Vegas mass shooting is casting doubt on whether hotel officials responded appropriately to warnings that could have mitigated the death and destruction from gunman Stephen Paddock's attack.
What new information has been discovered?
CBS News reports that a maintenance worker says that he was an eyewitness to the security guard being shot through Paddock's room door, and that he warned hotel officials about the occurrence.
What did he say he did?
Stephen Schuck says he told dispatchers to call the police when the security guard who had been shot by Paddock told him to take cover.
"As soon as I started to go to a door to my left the rounds started coming down the hallway," Schuck said. "I could feel them pass right behind my head.
"It was kind of relentless so I called over the radio what was going on," he added. "As soon as the shooting stopped we made our way down the hallway and took cover again and then the shooting started again."
Would this have made a difference?
In the timeline released by the police, this would have given them six minutes to respond to the shooter before he began shooting down on the crowd beneath the hotel.
Did the hotel not do enough to prevent the shooting?
Not according to undersheriff Kevin McMahill who defended the actions of the hotel.
"I can tell you I'm confident that he was not able to fully execute his heinous plan and it certainly had everything to do with being disrupted," McMahill said to CNN. "I don't think the hotel dropped the ball."
McMahill points out that the shooter had fired 1,000 rounds, but had another 1,000 rounds in waiting in his hotel room, which means that the security guard and the actions by the hotel likely interrupted his plans, and might have saved lives. Nearly 60 people were killed and close to 500 others were hurt in the attack.
But questions still remain.