Gunman kills at least 10 people in Colorado supermarket | Nightline
A suspect was taken into custody. A motive was unclear. WATCH NIGHTLINE EPISODES: https://abc.go.com/shows/nightline ALSO AVAILABLE ON HULU: https://hulu.tv/2wSmSrZ #Nightline #Colorado #Supermarket #MassShooting #KingSoopers #GroceryStore source