DENVER—Several members of a bizarre spiritual group called “Love Has Won” have been taken into custody after the badly decaying body of the group’s leader was found in its headquarters. Amy Carlson, 45, whose followers call her “Mother God,” was found dead in a mobile home in Casada Park, west of Crestone. Saguache County Sheriff’s deputies and Colorado Bureau of Investigation detectives found the self-proclaimed “divine being” of the group after a tip-off from a member who told them her body had been transported to Colorado from across the country. The death and its connection to Love Has Won—which law...