There's Mafia murderers who don't particularly enjoy the work but do it if the occasion arises

Then from time to time u get the sicko that actually enjoys it and wants to kill more and more- I believe John Pappa obviously inherited a lot of his dad's psychotic personality

I have a relative myself, the father has mental problems and now the teen kids too

http://gangstersinc.ning.com/profiles/blogs/colombo-associate-john-pappa