Ok I found the link. I'm sorry to say that I was mistaken. Someone was reported to CIC, and CIC took the action to revoke PR, but the person successfully appealed it by saying the sponsor abused them and was able to keep PR.
http://www.canadavisa.com/canada-immigration-discussion-board/how-many-people-have-been-deported-under-condition-51-t263314.0.html;msg3995884#msg3995884
Sorry, I know you were looking for a case where someone had the PR revoked.