CHARLESTON, SC - JUNE 19:  Family members of the nine victims of the Emanuel AME Church shooting comfort one another during a prayer vigil at the College of Charleston TD Arena June 19, 2015 in Charleston, South Carolina. Authorities arrested Dylann Storm Roof, 21, after he allegedly attended a prayer meeting at the church for an hour before opening fire and killing three men and six women. Among the dead is the Rev. Clementa Pinckney, a state senator and a pastor at the church, the oldest black congregation in America south of Baltimore, according to the National Park Service.  (Photo by Chip Somodevilla/Getty Images)