Which countries have the most documented serial killers? The U.S. tops the ranking by a staggering margin with 3,803 identified cases.

The US is No. 1 — in serial killers. With a chilling 3,615 known serial killers to date, America has produced 66.2% of the world’s known serial killers to date — and outpace the next deadliest nations ...

The chances of living next door to a serial killer are slim, but never zero-especially if you live in America. The "Land of the Free" also seems to be the land of free-roaming criminals, with the U.S.

True crime has gained extra eyes in recent years from things like documentaries and podcasts, and there's still plenty of material out there to explore for writers, filmmakers, and podcasters. Serial ...