He killed 58 people and injured more than 500.
Authorities said they are still investigating and expect to continue exploring the hotel room and the suspect's house for at least five more days.
"It's incredible that security guard didn't sustain additional injury", the sheriff said.
Have we really reached a point where we have to criticize someone who survived a shooting for showing respect to the president? Nineteen more guns were found at his home in Mesquite, about 80 miles northeast of Las Vegas, and seven at his house in Reno.
"We'll talk about that on a later date", said the president.
"Australia will support the U.S. authorities in their investigation in whatever way we can, but we have not had contact with Marilou Danley directly".
"I've met her three or four times", he said.
She was met in the United States Tuesday evening local time - Wednesday in the Philippines - by Federal Bureau of Investigation agents. Still, one sister hoped that her perspective could provide some clues as to what happened.
"No one can put the puzzles together".
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Australia's Channel 7 TV network interviewed Marilou Danley's sisters with their faces obscured and their names withheld.
Images and videos taken during the shooting show people running away and laying down on the floor.
The comments came following news Paddock had bought 33 guns between October 2016 and September 28, when he checked into the hotel.
Sheriff Joseph Lombardo said Paddock fired through the door of his hotel room and hit a security guard in the leg.
The room goes for $590 but was given to Paddock for free because he was a good customer who wagered tens of thousands of dollars during each visit, the person said.
The killer also had cameras set up inside and outside the suite.
The shooter in the Las Vegas deadly massacre apparently planned to survive and escape in the moments after the massacre, but investigators did not specifically say how he meant to do that. One is that there is no way Paddock could have done what he did without the help of someone else.
"He talked about how he just moved closer to where we are", Chris Michel, owner of Dixie GunWorx, in St. George, Utah said of Paddock.
"This investigation is not ended with the demise of Mr. Paddock", the sheriff said.
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Police entered the hotel to begin working their way to the shooter's sniper nest.
Trump, speaking next to first lady Melania Trump, on Wednesday praised the emergency workers and medical staff who responded to Sunday's massacre.
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The Philippines' National Bureau of Investigation (NBI) said the FBI, its USA counterpart, had sought help in finding Danley.
In February 2015, Danley filed a joint petition for divorce with her now ex-husband, whose surname she has kept, court records show.
Paddock had recently wired $100,000 to the Philippines, a United States law enforcement source confirmed to CNN.
Snyder said authorities are still determining which firearms were used in the shooting.
Danley's statement added: "It never occurred to me in any way whatsoever that he was planning violence against anyone".
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Clark County Sheriff Joseph Lombardo named the 62-year-old as a "person of interest" shortly after the mass shooting Sunday night. Paddock, 64, killed at least 58 people and injured 527 others Sunday night in the deadliest mass shooting in modern US history.