Is anyone a statistician? What are the chances that:
There was an outdoor even that just happened to be in a place/city/town where a person was willing to attempt an assassination?
And that the First Lady would just happen to need SS, dividing resources, on that exact same day an hour away at pretty much the last minute?
And that an obvious roof just happened to be outside of the security zone that had no security on it?
And that all security inside the higher roofed area just happened to leave their posts when the shooter was shooting?
And that the person who was willing to assassinate someone was able to get onto onto the roof without any security seeing/stopping him.
And that the person willing to assassinate someone could belly crawl the distance they did without the Counter sniper team facing that way seeing him at all? (might be tree line, but still, what are the odds)
And that there were no radios that managed to convey "Shooter on roof, get down" before the shooting started?
Was this person just prepared and looking to see if there was a hole in security and there was a gaping one in his face so he took a chance? What are the odds of that? I mean, I'd really like to know actual ones.