Helen Radkey sits in her tiny Millcreek apartment amid images of Buddha and Egyptian sun gods, good-luck charms, sacred texts, tarot cards and a makeshift shrine to a Catholic saint, complete with a relic. Her refrigerator is awash in photos of children, grandchildren and friends from around the country and across the globe. Both bedrooms are piled high with box after box of file folders, evidence of her decadeslong drive to undermine the LDS Church's temple ritual in which living Mormons are baptized for a person who has died. Each folder contains the name and personal information of an individual...