Nelson Mandela was imprisoned for 27 years. Upon release he was far from broken.
Humans are highly adaptive. JB's cat A prison life will be as normal to him as our lives are to us.
Many have seemingly everything and yet suffer depression eg the late Duke of Westminster, Gerald Grosvenor.
How would we know what JB has? He might have a rich inner life akin to David in his bedroom or a Buddhist monk in a temple!
Nelson Mandela’s time in prison was a lot different to Bamber’s, he called it a long holiday he even had a swimming pool and visitors whenever he wanted and he was innocent. Bamber had to face upto being caught out and psychopaths don’t like being told what to do, he’s not top dog in prison there’s people that can match him.
Having said that, I recently watched a video of Stephen Downing, he spent 27years for a crime he didn’t commit, if he had pleaded guilty he would have been out after 17 years, he looked full of life and was learning to drive.
Have you finished the book yet? The secret Barrister? Any good Holly?