DENVER — Stephen Szutenbach had never kissed anyone when, he says, a priest he had befriended in the late 1990s started making sexual advances. Szutenbach was 18, a devout Catholic teenager interested in the seminary; the Rev. Kent Drotar was a 39-year-old ranking administrator at St. John Vianney Seminary. "I was so sheltered and I was very uncomfortable because … he's in charge," Szutenbach said. "He's the person who could say, 'I don't think he's fit to be in the seminary.' " But the young man did get into the seminary. And in the ensuing four years, he experienced repeated...