 In my memory for the rest of my life, like, I'll never forget this. Nobody will ever forget this. This man won't forget it either. He told a BBC reporter he alerted police when he saw a gunman on a nearby rooftop. We could clearly see him with a rifle, absolutely. We're pointing at him. The police are down there running around on the ground. We're like, hey, man, there's a guy on the roof with a rifle.