VERY easy? I am curious, how does one find a hit man? I live in one of the highest murder per capita cities and I would say it is VERY difficult to find a hit man. I wouldn't have a clue where to go, who to talk to, etc. Now, if I wanted drugs, prescription pills or an illegal gun, that's a different story.
It's not much of a leap from an illegal gun to someone to shoot it for you, IMO.