Tim Krepp is a professional tour guide based in Capitol Hill in Washington, D.C. Krepp is a contributor to The Hill is Home, Greater Greater Washington, and the Huffington Post. He is also the author of Capitol Hill Haunts. Louis Bayard is a New York Times Notable Author. He has been nominated for both the Edgar and Dagger awards. His articles have appeared in the New York Times, the Washington Post, the Los Angeles Times, the Huffington Post, Salon, and Nerve.com.