JOLIET, Ill. — Joliet police described a “reign of terror” in the southwest suburban community this weekend, when they believe one man killed eight people, including two teenage girls and multiple relatives. Romeo Nance, the 23-year-old man wanted in the fatal shootings of eight people in the Joliet area, died from a self-inflicted gunshot Monday night after being pursued by U.S. Marshals in Texas. While many of the details of the case remain unclear, including the motive, police said at a news conference Tuesday they believe Nance killed seven relatives in two homes before killing another man…