The truth about Mindhunters and FBI BSU:
https://www.newyorker.com/magazine/2007/11/12/dangerous-minds
'It’s a party trick....'
The programme with Kemper's quote follows the development of the BSU:
It's not easy butchering people. It's hard work.
Did he ever say that?
Also: http://www.independent.co.uk/arts-entertainment/tv/news/mindhunter-season-1-netflix-serial-killer-interviews-ed-kemper-david-fincher-fbi-jonathan-groff-a8008881.html
https://www.newyorker.com/magazine/2007/11/12/dangerous-minds
'It’s a party trick....'
The programme with Kemper's quote follows the development of the BSU:
It's not easy butchering people. It's hard work.
Did he ever say that?
Also: http://www.independent.co.uk/arts-entertainment/tv/news/mindhunter-season-1-netflix-serial-killer-interviews-ed-kemper-david-fincher-fbi-jonathan-groff-a8008881.html