Derek and Maria Broaddus found their dream home in Westfield, New Jersey at 657 Boulevard. Just days after closing on their new home, Derek received the first of four cryptic and threatening letters from "The Watcher." This remains an unsolved case, and no one knows who The Watcher is. As they so kindly put it - "There are hundreds and hundreds of cars that drive by 657 Boulevard each day. Maybe I am in one. Look at all the windows you can see from 657 Boulevard. Maybe I am in one. Look out a...