They're not real - they wouldn't be allowed to use them in a film if they were lol
The film was a work of fiction, but based on real events. How close to any particular case it stayed, I'm not sure. I thought it was fairly disturbing, but could have been done more effectively. I had the sense throughout the film that I'd be a wreck in the last 22 minutes (got family members that age) but by the time it came around, I didn't think it was too bad.