Murderous Minds: Inside Serial Killers Season 5 Episode 9 Serial Killers JUST Recently Caught

According to statistics, the US leads the way when it comes to the number of serial killers in a single country. Of course, such criminals are active all across the world, but the good news is that their numbers have been declining since the 1980s. There are certainly far fewer serial slayers today than there were over four decades ago, but that's not to say that they don't exist entirely.