WASHINGTON, DC - JUNE 18:  U.S. President Barack Obama pauses as he makes a statement regarding the shooting in Charleston, South Carolina, June 18, 2015 at the James Brady Press Briefing Room of the White House in Washington, DC. Authorities have arrested 21-year-old Dylann Roof of Lexington County, South Carolina, as a suspect in last night's deadly shooting at the Emanuel AME Church in Charleston, South Carolina, killing nine people.  (Photo by Alex Wong/Getty Images)