The staff tend to be an eclectic group. Prisons are often built in economically depressed areas in which they are often the largest employer in the county. Voting with one’s feet is often not economically viable, and the job attracts not only people who are there because they need the jog, but also those who see illicit opportunity with being paid hourly and receiving benefits serving as a bonus, and also those who for lack of a better explanation don’t have a dog at home to kick and get their gratification from taking to work and taking it out on the inmates.
One critical thing pertaining to finding truth from the outside comes to mind: In a moment of hubris, Gene Martin made a declaration to an assembly of staff to the effect that when dealing with reporters, you make up your mind what you are going to tell them. Regardless of what they ask, you tell them what you decided to tell them.
Hopefully tying together a few loose ends helps, if nothing else, to ease the curiosity left after so much work makes you the owner of questions that are generally unanswerable.