Ms Danley said she was "devastated by the deaths and injuries that have occurred" and said she prayed for the victims and their families.
A security guard was the first person to discover his location on the 32nd floor, and Mr Lombardo said Paddock released "well over 200 rounds striaght up the hallway".
The girlfriend of mass murderer Stephen Paddock will be interviewed by the Federal Bureau of Investigation in Los Angeles, not brought to Las Vegas for questioning, according to Clark County Sheriff Joe Lombardo. The 62-year-old is classified as a "person of interest" to investigators but remains free to go wherever she wants, United States media reported.
"In that sense, I thank him for sparing my sister's life", she said, adding her sister was "really in love with Steve".
Snyder said authorities would not have been notified of the rifle purchases but would have been informed if two or more guns were bought at one time.
Richard Vasquez, a former chief of firearms technology for the ATF, said "without a doubt it was automatic fire", but it's hard to determine any more specifics about the weapons used because the videos are shot from so far away and there are lots of gunshot echoes.
She was out the country at the time of the shooting and in the Philippines on Tuesday.
As of yet, no motive has been worked out, with Clark County Sheriff Joseph Lombardo saying they don't know what his belief system was and family members ruling out religious or political motives.
A terrorist named Stephen Paddock began firing automatic weapons into a crowd at the Route 91 Harvest Festival late Sunday night. By holding the pistol grip with one hand and pushing forward on the barrel with the other, the shooter's finger comes in contact with the trigger.
Las Vegas Police said 19 weapons were found at Paddock's home and that ingredients that could be used to make a bomb were in his vehicle at the hotel.
Police recovered almost 50 firearms from three locations they searched, almost half of them from the hotel suite.