They had to have known already.
http://usnews.nbcnews.com/_news/2013/04/28/17901313-fired-lesbian-teacher-fights-to-get-job-at-catholic-high-school-back
http://usnews.nbcnews.com/_news/2013/04/28/17901313-fired-lesbian-teacher-fights-to-get-job-at-catholic-high-school-back