@edgarblythe,
There is a very good TV drama starring Timothy Spall about the life of Albert Pierrepoint, third generation hangman after his father and grandfather. He executed a huge amount of people including Nazi war criminals.
In the end he became disillusioned with the whole process, being against capital punishment. He ended up taking small comfort from doing a good job, he executed people very quickly indeed and made sure their bodies were treated with respect.
Timothy Spall gives a very sympathetic portrayal.