US President Donald Trump has declared the day a “very, very sad day” for himself and the nation, after visiting a Las Vegas hospital following the worst mass killing in modern US history.
Mr Trump met with survivors and law enforcement officials on Wednesday afternoon in the aftermath of the shooting, where a gunman killed 59 people including himself and injured more than 500 at a concert.
Meeting with reporters, he said the shooter was not mentally well, as he left the University Medical Centre, which has cared for dozens of shooting victims.
“It’s a very sick man. He was a very demented person,” Mr Trump said.
He said the thoughts of Americans were with the victims.
“America is truly a nation in mourning,” he said at a press conference at the Las Vegas Metropolitan Police headquarters.
“Our souls are stricken with grief for every American who lost a husband or a wife, a mother or a father, a son or a daughter.”
“We know that your sorrow feels endless. We stand together to help you carry your pain.”
Mr Trump praised the efforts of police, first responders and average Americans who quickly worked to save the lives of others on Sunday.
He said he did not know what motivated Stephen Paddock, 64, to open fire on an outdoor country music festival on the Las Vegas Strip late on Sunday night, but they were “learning a lot more” about the shooter and were “looking very hard” for answers.
However, during the trip Mr Trump deflected questions about whether the US has a problem with gun violence.
“We’re not going to talk about that today,” he said.
On Tuesday, Mr Trump appeared somewhat open to having a gun debate, but not soon.
“At some point, perhaps, that will come,” he told reporters.
“But that’s not for now.”
It comes as Paddock’s girlfriend Marilou Danley was interviewed at the FBI’s office in Los Angeles accompanied by her lawyer, according to a law enforcement official who spoke on condition of anonymity to Reuters and AP.
Ms Danley, 62, said she was aware the FBI and Las Vegas police wanted to interview her “and I want to talk to them.”
She had been called a “person of interest” by investigators and was met by federal agents on Tuesday night when she arrived at the Los Angeles airport from her native Philippines after more than two weeks overseas.
“I will cooperate fully with their investigation. Anything I can do help ease suffering and help in any way, I will do,” she said.