90 minutes of terror: Moment by moment, how the Las Vegas shooting unfolded

A clearer picture of events surrounding the Las Vegas shooting is starting to emerge as details about the gunman and police scanner recordings are released. 

Based on those recordings, news conferences and other documents, here's what we know about the moments of terror around the worst mass shooting in modern U.S. history that killed 58 people and wounded more than 500:

Sept. 28

Stephen Paddock, 64, of Mesquite, Nev., checks into the Mandalay Bay Resort and Casino. He brings “in excess of 10 suitcases” to the two-room suite on the 32nd floor, according to police. At least 23 weapons, many of them rifles ranging in size from .308 to .223 caliber, were later found in the room, along with two tripods positioned near windows, according to police. And another 19 guns were found at his home, along with Tannerite explosive used in firearms practice.

Oct. 1

10:08 p.m. Pacific time: Police dispatcher receives the first reports of shots fired at the Route 91 Harvest Festival. Country singer Jason Aldean is performing for 22,000 people, across the Las Vegas Strip from Mandalay Bay.

“We’ve got shots fired,” a police officer shouts into his radio, as recorded by Broadcastify.com. “Sounded like an automatic firearm.”

Thirty seconds later, another officer confirms the shooting.

“It’s coming from upstairs, Mandalay Bay,” the officer says. “I see the shots coming from Mandalay Bay, halfway up!”

10:09 p.m. Casualties mount quickly, as reported by officers at the scene.

“We have an active shooter!” one officer says. “We have an active shooter inside the fairgrounds!”

10:10 p.m. Officers spend several minutes coordinating with dispatchers and trying to spot the source of the gunfire.

“Just advising there are people down on stage left,” one officer says.

10:12 p.m. There is initial confusion about whether the shots are coming from Mandalay Bay, the Luxor or even from within the fairgrounds. Despite the uncertainty, officers focus on Mandalay Bay and immediately move in that direction under withering gunfire.

“Somewhere in Mandalay Bay,” one officer says. “It’s at the intersection, that’s where it sounds like. It’s that close.”

“It sounded like an elevated position,” another officer says.

“I’m going to form a strike team at Mandalay Bay and the boulevard,” one officer says. “I need five officers on me.”

“We have multiple casualties!” one officer shouts. Gunshot wounds “in the medical tent! Multiple casualties!”

10:13 p.m. Officers begin asking for help shutting down traffic on Las Vegas Boulevard between the fairgrounds and Mandalay Bay.

“We’re seeing multiple flashes in the middle of Mandalay Bay, on the north side,” one officer says.

10:14 p.m. Before seven minutes have elapsed from the first report of gunfire, an officer says he is on the 31st floor of Mandalay Bay.

“I can hear the automatic fire coming from one floor ahead, one floor above us,” the office says quietly.

“Just be advised,” another officer says. “It is automatic fire, fully automatic fire from an elevated position. Take cover.”

“I’m right below it,” the first officer says.

Clark County Sheriff Joe Lombardo said later that officers coordinated with security guards at the hotel to gather intelligence and learn that customers had complained about hearing shots from the 29th to the 32nd floors.

“Some officers took it upon themselves to immediately go to the Mandalay Bay,” Lombardo said. “There was a team of six officers that approached security. They went up the elevators after discussing the situation with security and obtaining intelligence. They checked each floor, until they located were where they believed to be the room. Subsequently they approached the room, received gunfire, they backed off and SWAT responded.”

10:16 p.m. At the same time, the carnage mounts on the ground below.

“Multiple (gunshot wounds) in chest, legs, femoral arteries,” one officer says. “Send a medical (garbled) to Giles (Street) south, off Reno (Avenue).”

Reports flood in about injuries, including from Gate 4 where one female is shot in the legs and another is shot in the mouth. Officers again ask for medical treatment to begin at a Giles and Reno, diagonally across the fairgrounds from the Mandalay Bay.

“We’re pinned down on the east side of Las Vegas Boulevard,” one officer says. “We’ve got about 40 to 50 people pinned against this wall. We’re taking gunfire. It’s going right over our heads.”

An officer is reported among the wounded.

“We need to stop the shooter before we have more victims,” one officer says.

10:17 p.m. The situation at a medical tent set up for the concert becomes dire.

“We have multiple, multiple victims shot at the medical tent,” one office says. “We have one shot in head.”

“Hey officers, stay calm,” another person says.

10:18 p.m. “We’re in the medical tent on the east side,” an officer says. “We’re making tourniquets out of blankets, but I’m running out of blankets here.”

Clark County Fire Chief Greg Cassell said later that 108 firefighters from four departments responded to the scene, in addition to dozens of ambulances from three private companies, to treat injuries from gunshots, shrapnel and trampling.

“I have never seen that many ambulances,” he said.

10:19 p.m. Another group of four officers approaches the Mandalay Bay.

“We’re going to make entry through the south wing, to make contact with the suspect, see if we can’t get up to him,” one officer says.

An officer already in position says a group is on that floor.

“Copy,” the first officer says. “We’re going to make our way to give you support.”

10:20 p.m. Officers evacuate wounded to the University Medical Center, one with a woman suffering a gunshot wound to the head and another with a wounded officer.

10:21 p.m. Within 13 minutes, officers on the ground notice that the shooting appears to have stopped.

“It’s been a while since we’ve heard any shots,” one officer says. “Does anyone have eyes on the shooter?”

10:24 p.m. Up on the 32nd floor, police and security officers are closing in on room 135. An officer calls for a SWAT team after the gunman shot through his door and wounded a hotel security guard who accompanied the officers.

“We have a security officer shot in the leg on 32 floor,” an officer says. “He shot down the hallway and hit a security guard.”

10:29 p.m. As officers gather on the 32nd floor, there is still confusion about whether a second gunman could be on the 29th floor.

Down on the ground, officers report that civilians are trying to get weapons from police cars to defend themselves.

“Please advise all units to have their vehicles locked,” one officer says. “People are going in, trying to grab shotguns.”

10:32 p.m. Police say multiple reports from the tower at McCarran International Airport about people walking across the runways. And first responders increasingly turn their attention to caring for the wounded.

“Designate me one marked vehicle right now,” an officer says. “I’ve got an officer with a gunshot wound to the neck.”

10:34 p.m. Amid the confusion, police keep alert to other suspicious activity. A black truck  races out of a parking lot. A few minutes later, an older man wearing fatigues and carrying a black bag from the direction of the shooting climbed into a white recreational vehicle.

10:46 p.m. With thousands of people leaving the concert, some got creative for transportation.

“I had somebody take a patrol car,” one officer says. “I’m being overtaken by citizens trying to take patrol cars.”

10:50 p.m. As officers converged on the Mandalay Bay’s 32nd floor, they took precautions to avoid shooting each other.

“I’ll let you know before we come through a door, so we don’t have a blue on blue,” one officer said as he approached the floor.

The police confrontation with the gunman isn’t heard on the Broadcastify recording. But an officer on that floor of the hotel assures a colleague that they have enough firepower.

“I have multiple rifles and plenty of officers,” the officer says.

11:19 p.m. The airport warns of possible flight delays as police investigate the shooting. Nearly two dozen flights were diverted to other airports overnight.

11:58 p.m. Police report the suspect is down. Paddock shot himself to death, police said later.

Oct. 2

1:55 a.m. Police announce at least 20 dead and 100 wounded.

1:57 a.m. Police search two vehicles linked to Paddock, a Hyundai Tucson and a Chrysler Pacifica.

2:35 a.m. Mandalay Bay offers its thoughts and prayers to the victims, and its gratefulness for first responders.

3:38 a.m. Police announce at least 50 dead and 200 injured.

4:11 a.m. President Trump tweets his condolences and sympathies to the victims and their families.

4:30 a.m. Las Vegas police say two on-duty officers were injured during the shooting, with one in stable condition after surgery and the other with minor injuries.

5:33 a.m. Police identify Paddock as the late shooter, with at least 50 dead and 406 injured. One off-duty Las Vegas police officer is among the dead.

10:50 a.m. ET Trump speaks at the White House about the shootings, calling it “an act of pure evil.”