 Top stories here. CBS News learns there were three municipal snipers stationed inside that building from where the man fired shots at President Trump at the rally in Pennsylvania. What more have we learned about the background of this man who shot President Trump? Former President Trump, WTOP's national security correspondent, J.J. Green, is following that. We hope you can stay with us. We're back with Ken Berger. He's in the WTOP Traffic Center.