Philadelphia (CNN) -- Andrew Cattaneo is still in shock. It's been only a day since his neighbor across the street, Melissa Ketunuti, was found dead in the basement of her row home Monday afternoon, her hands and feet bound, her body set on fire. Standing in the doorway of his home, Cattaneo watched as police detectives returned to the scene Tuesday while news reporters huddled nearby trying to stay warm on the blustery January afternoon. "She was very pleasant, very nice, very friendly and quiet," Cattaneo said, looking across the street. "It's very upsetting." Although authorities were awaiting the final...