CHARLESTON, USA - JUNE 26: U.S. President Barack Obama gives the eulogy at the memorial service for Reverend Clementa Pinckney in Charleston, USA on June 26, 2015. Reverend Clementa Pinckney was one of nine African Americans who were allegedly murdered by Dylann Roof, a self declared White Supremacist, at Emanuel African Methodist Episcopal Church, a historic black church, during a Bible study on June 17, 2015. (Photo by Samuel Corum/Anadolu Agency/Getty Images)
