GREELEYVILLE, SC - JULY 1: Investigators with the Bureau of Alcohol, Tobacco and Firearms examine the burned ruins of the Mt. Zion AME Church July 1, 2015 in Greeleyville, South Carolina. Federal and state agencies are investigating a recent string of church fires in the South that have occured since the church massacre in nearby Charleston, South Carolina. Mt. Zion AME was burned twenty years ago by members of the Ku Klux Klan. (Photo by Sean Rayford/Getty Images)
