While investigators attempt to unravel the reason for the worst mass shooting in recent U.S. history, President Donald Trump went to Las Vegas to console victims and meet with police and other first responders.

Trump, speaking next to first lady Melania Trump, on Wednesday praised emergency workers and medical staff who responded to Sunday's massacre.

“What I saw today is just an incredible tribute to professionalism,” Trump said. “It makes you proud to be an American.”

Meanwhile, Las Vegas Metropolitan Police Department Sheriff Joe Lombardo said it is crucial to talk to anyone who knew gunman Stephen Paddock in the hunt for possible accomplices.

Considering the number of weapons Paddock collected and explosives he had stockpiled in his car, Lombardo told reporters he finds it hard to believe Paddock could have carried out the massacre on his own.

Lombardo said Paddock spent decades living what he calls a "secret life" and that concealing his activities all those years was well thought out.

But the sheriff declined to provide any details on what has been uncovered so far about Paddock because he said he does not want to say something that could drive anyone with information underground.

Lombardo said there were signs in Paddock's hotel room that he planned to escape after his shooting rampage. Paddock shot himself in the mouth as police zeroed in on his room.
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