Story seems a bit over exaggerated, there were two other people in the room at the time and the guard might not have known what to do in that situation some people just freak out seeing stuff like that. Plenty of things go on in hellish places like hospitals and mental wards but you have to go easy on the people who work there at times people like that end up overloading on the things they've seen and suffer from all kinds of stress.

Not to take from the incident, obviously a bad thing.