Support WBURWhat Is, And Isn't, Considered Domestic TerrorismPlay03:17Download AudioGreg MyreOctober 02, 2017 ShareCrime scene tape surrounds the Mandalay Hotel in Las Vegas after a gunman in one of its rooms killed at least 58 people, with more than 500 others injured, when he opened fire on a country music concert late Sunday. (AFP/Getty Images)
