
Contract killing, sometimes known as murder-for-hire, refers to the act in which one party employs another party to murder a targeted person via an illegal agreement that involves some form of compensation, monetary or otherwise. An act of contract killing is known colloquially as a hit, and the person performing the killing (i.e. the contract killer or "contractor") is known as the hitman or (as borrowed from Spanish) "sicario".
Contract killings generally make up a small percentage of murders. For example, they accounted for about 6% of all murders in Scotland from 1993 to 2002. Despite the popular attention in the media, the act of contract killing received very little attention in the academic literature.
A study by the Australian Institute of Criminology of 162 contract murders and attempted contract murders in Australia between 1989 and 2002 indicated that the most common reason for murder-for-hire was insurance policy payouts. The study also found that payments varied from $5,000 to $30,000 per killing, with an average of $15,000, and that the most commonly used weapons were firearms. Contract killings accounted for 2% of murders in Australia during that period.
To mitigate risk for the individual seeking a hitman, and signal legitimacy, vendors emphasize privacy and anonymity while claiming ties to established organizations like the military or mafia.