???
That’s not that unusual in minimum and some medium security settings.
CC
Sounds like some kind of nominal privacy guard that would stop other inmates, not that would keep the prison officials out.
Self defense killings is something whose occasion certainly shouldn’t be encouraged, but “in extremis” behavior morally, even if not legally, shouldn’t be punished. It was not always historically thus everywhere, and some prison systems were known for goons that would spirit a prisoner out of view and then shoot him, with the excuse that he tried to get away.