 The shooter had an AR-15-style weapon and was shooting into the area where the president was. One person in the crowd at the president's rally was killed. Two others critically injured. The president going to a hospital in Butler. Now, we believe, has left that hospital. But the president's team saying that he is now doing fine. We're only a matter of hours away on this Saturday night to the RNC getting going on Monday night. ABC's Stephen Portnoy.