All valid points, sadly. I don't know the rights and wrongs of this situation - it's just sad to see someone who was clearly once an educated and intelligent man* reduced to sending scribbled notes from a prison cell.
PDR
* He was a vet, and that's difficult to get into without intellect and education. A school friend of mine wanted to be a vet, but she didn't quite get the A-levels she needed so she took second best and became a doctor.