Indeed, some countries around the world have earned a chilling reputation for experiencing some of the most heinous crimes imaginable. And they're not just one-off crimes: quite a lot of serial killers have managed to increase the homicide rate in these nations and cause chaos amongst the general public. By definition, a serial killer is a person who murders three or more people, on separate occasions, unlike a mass murderer, who kills multiple people at once.
So, which countries have experienced the most serial killers? Click through this gallery to find out.