DEVELOPING: 13 Dead, Gunman ID’d and 2nd Gunman Sought in DC Shooting Spree

New information emerging on the Washington, D.C. Navy Yard shooting spree, including the name of the dead gunman. Aaron Alexis was apprehended and shot during the rampage that has left 13 dead. The second gunman is still at large and officials are searching for him. The Senate building is currently on lockdown and the Washington Nationals baseball game has been cancelled.