 These shocking events in Butler, Pennsylvania, you're raising a lot of questions. The investigation underway now, well underway. We're also hearing reports that they searched the gunman's home. They have spoken with his family. So that's all part of this now being wrapped into it. There were questions, too many. How did a gunman with an assault rifle able to climb on top of that rooftop with a clear line of fire at the podium, get into position and shoot off several rounds?