President Trump will meet first responders and survivors of the shooting that killed 59 people and injured more than 500 others.
Stephen Paddock, the Nevada man whom authorities identified as the gunman who killed 59 people on Sunday night, "continued to fire at a progressive successive rate for approximately nine minutes" after authorities received a 911 call, Clark County Sheriff Joseph Lombardo said.
President Trump on Tuesday visited Puerto Rico to survey the damage wrought by Hurricane Maria.
Trump will seek to turn the page in Las Vegas, with plans to herald the police response to the massacre while promising Americans that steps are being taken to protect them from future attacks, CNN reported.
"Our unity cannot be shattered by evil, our bonds cannot be broken by violence,and though we feel such great anger at the senseless murder of our fellow citizens, it is our love that defines us today -- and always will, forever," President said.
Investigators probing the Las Vegas massacre have searched Paddock's home and recovered 42 firearms, an assortment of explosives and several thousand rounds of ammunition from his Las Vegas hotel room and his Mesquite home.
The Las Vegas mass shooting is the deadliest mass shooting in modern American history, claiming the lives of 59 people and injuring 527 others.
Investigators believe Paddock, who fired into a crowd of thousands during a country music festival from a Las Vegas hotel suite, used bump-stock for the attack as it modifies a semi-automatic weapon to fire at an automatic rate, The Guardian reports.
Describing the shooting as "an act of pure evil", Trump had said he would visit Las Vegas on Wednesday and will meet with the first responders to the attack.
He has ordered for American flags at the White House and at public buildings nationwide to be flown at half mast.
Sheriff Joe Lombardo said investigators are focused on four main crime scenes right now: The room at Mandalay Bay hotel from where the gunman shot, the concert event location, the shooter's house in Mesquite, Nevada, and a home in northern Nevada, the CNN reports.
Some electronic devices have also been retrieved and are being evaluated, he added.(ANI)