 It was now a number of hours ago when shots were heard at the moment. It sounded like popping noises. Some people thought they were fireworks. Others knew immediately. It was gunfire unfolding at former President Trump's rally in Butler, Pennsylvania, north of Pittsburgh. Immediately, the former president grabbed his ear and looked at it. He was taken to the stage ground by Secret Service agents who jumped in and did what they were trained to do. It sounded like this. Take a look at what happened.