 quiet guy, a loner sort of a personality has been described to us. Don Mahalik, former Secret Service agent, ABC News consultant, is on the line with me here. And, Don, from what we know in the investigation, what is sticking out to you? What are the flags that are there as we're now less than a day into this? Well, it sounds like, again, Alex, that we have, you know, the typical lone wolf assassin here, which is always the most difficult to predict and to track.