A Chattanooga man has been arrested by the FBI for threats to kill members of the Islamic Society of Greater Chattanooga (ISGC). Robert Miller is being held on a charge of interstate threats to injure the person of another. Agents said the ISGC last Tuesday received an email from "Robert" at a Gmail account that contained his initials, stating "I'm going to kill all of you, Hail Satan." ISGC is a Muslim community center where community members pray, attend school, and participate in extracurricular activities and events, it was stated. On Friday, agents and a Chattanooga Police Department officer went to Miller's residence at 5017 Rossville Blvd., Apt.