The Des Moines Downtown Chamber of Commerce today announced its 2013 Leadership Awards winners. The 2013 Business of the Year was Capital Chiropractic and Rehabilitation Center, owned by Chris LoRang. The Ambassador of the Year award was given to Tom Vance, development coordinator at Central Iowa Shelter & Services. The Citizen of the Year award was given to Carrie Clogg, executive director of Civic Music Association.