The FBI has closed its investigation of the Las Vegas mass shooting that killed 58 people and injured hundreds more. Here's exactly how the nation's worst modern gun massacre unfolded
Reuters
The FBI has concluded its investigation of the Las Vegas mass shooting, the deadliest of its kind in modern US history.
An FBI Behavioral Analysis Unit did not find a "single or clear motivating factor" for gunman Stephen Paddock's actions, but concluded he was in financial trouble and had difficulty coping with his age.
But before the agency announced its findings on Tuesday, the massacre unfolded as most of them do — in a storm of chaos and confusion.
58 people were killed and more than 850 injured when a gunman opened fire at a country music festival on the Las Vegas Strip on October 1, 2017.
By the time the general public knew a shooting was underway, the gunman, 64-year-old Stephen Paddock, was already dead.
Despite an extensive investigation lasting well over a year, authorities ended their efforts without being able to determine Paddock's specific motive.
Here, moment by moment, is how the attack unfolded:
September 25, 2017: Stephen Paddock checks into the Mandalay Bay Resort and Casino on the south end of the Las Vegas Strip.
Getty Images.Paddock first arrived at the Mandalay Bay almost a whole week before the shooting.
Police originally said he checked in on Thursday September 28, but later updated the date to Monday 25, three days before.
According to the Associated Press, he asked for a high-level suite overlooking the Route 91 Harvest festival — but couldn't immediately get one.
A hotel source said that he didn't move in to the 32nd-floor room he used for the shooting until Saturday, the night before the attack.
The AP said he "was given the room for free because he was a good customer."
Paddock transports huge quantities of weapons and ammunition into his room.
APThe Las Vegas Metropolitan Police Department (LVMPD) say they found 23 guns and thousands of rounds of ammunition in his room.
He appears to have planned meticulously for the attack. As well as a large number of guns, Paddock set up at least three cameras to monitor the corridor outside, police said.
October 1, 9:40 p.m.: Route 91 Harvest festival begins its closing act.
Twitter/95.5 The BullAccording to Fox News, the country star Jason Aldean went onstage at 9:40 p.m. on the night of the shooting. He played for half an hour before the shooting began.
Las Vegas radio station 95.5 The Bull shared the line-up on Twitter before the event.
Aldean escaped unharmed and later paid tribute to his fans who were hurt and killed.
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