Last December, residents of a predominantly black neighborhood in Douglasville, Georgia, began receiving racially charged notes from a person claiming to be a white man and member of the Ku Klux Klan. In the notes, the sender was described as a six-foot-tall white man with a long, red beard who lived outside the neighborhood. The notes included threats to burn down the homes and kill the black residents, according to the Douglasville Police Department. Detectives investigated the notes and determined that Terresha Lucas, a 30-year-old black woman, was behind them. Lucas has since been charged with “eight counts of making...