12:33 p.m. - 12:36 p.m. - 12:33 p.m. – 12:36 p.m.
12:33 p.m.: Park Police report that they detained a person with a rifle on 17th Street near the WWII Memorial. (via the Washington Post)
12:36 p.m.: Vice President Mike Pence arrives at the Capitol. (via the Washington Post)