Man goes to jail for mother rape, sexorcism?

This news piece from Shanghai Daily about a man who got drunk and raped his girlfriend's mother is pretty horrific, but we were particularly struck by a contention near the bottom of the article that the perpetrator, Liu Changren, had been accused of having sex with the mother last year as well. Allegedly, Liu told her she was possessed by the evil spirit of her dead husband and needed to sleep with a young man to cast him out. It sounded very similar to a previous sexorcism story we'd heard, only that guy's name was Ji Renhu. So... is this an editorial mistake or is there now a trend of young men in Baoshan district routinely performing sexorcisms on their girlfriend's mothers?