AdvertisementFrom Minister To Atheist: A Story Of Losing FaithApril 30, 2012Barbara Bradley HagertyfacebookEmailTeresa MacBain walks her dog, Gracie, at a park near her Tallahassee, Fla., home. After a lifetime in the church, MacBain came out as an atheist at an American Atheists' convention in Bethesda, Md. (Colin Hackley for NPR)