Now playing Next USA Las Vegas gunman rented room overlooking another music festival week before shooting Paddock's girlfriend says she knew nothing about the attack 05/10/2017
Now playing Next USA Las Vegas gunman's gambling habit By Pete Williams, Tracy Connor and Kalhan Rosenblatt, NBC News The suspected gunman behind the Las Vegas massacre made several large gambling 04/10/2017
Now playing Next USA Las Vegas gunman adapted weapons, set up cameras before premeditated shooting At least 59 people were killed and more than 500 injured in the shooting 03/10/2017
Now playing Next USA Las Vegas massacre: what we know At least 58 people were killed and 489 injured in the Las Vegas shooting 03/10/2017
Now playing Next USA Las Vegas shooting: the victims What we know about the 58 victims of the Las Vegas shooting 03/10/2017
Now playing Next USA Heroism of the Las Vegas concert goers who put others first As bullets rained down, members of the Route 91 festival audience risked their own lives to save others 03/10/2017
Now playing Next USA How did Las Vegas shooter fire so rapidly? Automatic weapons are banned for civilians in the US, but loopholes exist. 03/10/2017
Now playing Next USA Las Vegas shooter owned over 40 guns Gun shop owner said Stephen Paddock had cleared "all necessary background checks and procedures." 03/10/2017
Now playing Next USA How many civilian guns does a well-regulated militia need? America is a historically and culturally different environment to Europe when it comes to the use of firearms by private individuals 02/10/2017
Now playing Next USA Social media reacts to Las Vegas shooting by demanding stricter gun laws 02/10/2017
Now playing Next USA America's most deadly shootings Below is a list of some of the most deadly shootings on US soil 02/10/2017
Now playing Next USA Donald Trump praises Las Vegas police for "miraculous" quick downing of shooter Donald Trump calls for prayer for Las Vegas victims and praises police after worst mass shooting in US history 02/10/2017
Now playing Next USA Las Vegas shooting: Eyewitnesses describe the scene "People were just dropping to the ground", said a concertgoer. 02/10/2017
Now playing Next no comment At least 50 dead in Las Vegas shooting At least 50 people have died and 200 have been injured in a shooting at a concert in a Las Vegas casino 02/10/2017
Now playing Next USA Toddler shoots two playmates at US daycare centre Two three-year olds are in a critical condition after an incident in Dearborn, Michigan. 29/09/2017
Now playing Next USA US police release footage of deadly shooting Video footage appears to show suspect open fire on California police. 28/09/2017
Now playing Next Canada CCTV captures moment of deadly gun attack at Toronto bar The 'brazen' shooting left one man dead. 02/08/2017
Now playing Next Russia Moscow court shootout leaves three dead and five injured Three people on their way to stand trial at a Moscow court were shot dead as they tried to escape. 01/08/2017
Now playing Next Turkey Gun attack in two Turkish beach clubs One person has been killed and four injured after a gunman opened fire on two beach clubs in the Turkish resort of Bodrum. 30/07/2017
Now playing Next world news Terrorism ruled out after German nightclub shooting leaves two dead Two killed including the gunman after a shooting in a nightclub in the southern German town of Konstanz 30/07/2017
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