This is the first image of the suspected gunman responsible for the 'worst mass shooting in US history'.
64-year-old Stephen Paddock has been named as the shooter who shot dead crowds of revellers at a country music event on the city's world famous strip.
It is thought he killed at least 58 people when he opened fire at a music festival in Las Vegas.
Stephen Craig Paddock was killed inside a room on the 32nd floor of the Mandalay Bay Hotel.
Police said the shooter was a “local individual” who was firing from his hotel room above the concert area.
He was killed after a police SWAT team blew the hotel door open and then shot him dead.
Inside the hotel room, police found numerous firearms.
It's emerged Paddock, had lived on Babbling Brook Court in Mesquite, near Las Vegas since June 2016.
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He was living in a retirement community and had no criminal record.
One eyewitness reported that a woman had warned people in a hotel that they were going to die 45 minutes before the shooting began.
Police later launched a hunt for the gunman's roommate Marilou Danley who was later picked up by officers on the Las Vegas strip.
Crowds were enjoying the Route 91 Harvest country music festival when the shooter reportedly started spraying bullets from a hotel balcony.
As terrified revellers fled for their lives, officials received reports of an "active" gunman and patrol vehicles descended on the popular US Strip.
Some officers were seen taking cover behind their vehicles, while others carrying assault rifles ran into the Mandalay Bay Hotel and Casino.
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Las Vegas Metropolitan Police Department (LVMPD) later confirmed that one suspect was dead and that he is believed to have acted alone.
However, the force said officers were now searching for a female companion, Marilou Danley, who had travelled with the suspect before the shooting.
They are also looking for two vehicles associated with the gunman - a Hyundai Tucson Nevada/114B40 and a Chrysler Pacifica Nevada/79D401.
According to local reports, the victims at the Route 91 Harvest country music festival were shot with a high-powered assault rifle from the 32nd floor of the hotel.
Police responded to the incident about 10 p.m. local time.
In a media briefing held shortly after midnight, police reported that one suspect - who was a local resident - was down.
The suspect's traveling companion, Marilou Danley, is being sought, as are two vehicles believed associated with the gunman.
A Las Vegas hospital first reported that two people were killed in the attack, with 24 injured. But later in the night, Las Vegas Metropolitan Police Sheriff Joseph Lombardo confirmed that at least 20 had died.
But the death toll in the Las Vegas shooting has now been updated to 50 with more than 200 injured.
That makes it the deadliest mass shooting in US history.
The worst previous incident took place in June 2016 when Omar Saddiqui Mateen, 29, killed 49 people inside gay nightclub Pulse in Orlando, Florida.
The shooting broke out at the end of a Jason Aldean set, with some witnesses reporting that they had heard possibly hundreds of shots and seen at least one officer down.
Videos posted to Twitter show concertgoers sheltering in place as gunshots are heard ringing throughout the area.
Aldean called for prayers for the victims on Instagram.
He wrote: "Tonight has been beyond horrific. I still don't know what to say but wanted to let everyone know that me and my crew are safe. My Thoughts and prayers go out to everyone involved tonight.
It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night."
Police have appeared to rule out terror as a motive for the shooting.
Asked whether Metro believes this is an act of terrorism, the sheriff said: “no, not at this point, we believe it’s a local individual.”