Las Vegas music festival shooting a country music festival in Las Vegas shooting opened fire headline Vegas NBC report etti He killed 57 people Jason Aldean performed he opened fire Authorities say a “lone wolf” opened fire into the festival the worst mass shooting in modern American history Las Vegas Route 91 Music Festival in Las Vegas Vegas NBC News Vegas a mass shooting in Las Vegas Blankstein, et al. mass shooting at a Las Vegas concert NBC reported Original Article the news NBC News reported Las Vegas shooting identified as the shooter 600 people lone gunman We heard what sounded like firecrackers going off Las Vegas concert massacre mass shooting at a Las Vegas concert Image Associated with NBC Page: it’s a day for them 600 people Image Source deadliest in modern United States history Route 91 Harvest told Las Vegas shooting told MSNBC 58 people are dead and more than 500 are wounded mass shooting at the Mandalay Bay Las Vegas a music festival at some risk of exposure to an attack Las Vegas NBC News a music festival