Although an internet search on classifications of serial killers might turn up just one, there are multiple systems, depending on the purpose of the research that grounds them.

Amelia Dyer is believed to be the UK's most prolific serial killer, with the murderess killing as many as 3,900 babies - and ...

Caroline Fraser has pulled a major switcheroo with her new book, “Murderland.” ...

Japan has executed a death row prisoner, public broadcaster NHK and other media outlets said Friday, the first time since ...

She thinks the area was so packed with killers in the ’70s and ’80s because of a copper smelting plant that belched lead, arsenic and other chemicals into the water and air.

Japan hangs the "Twitter killer" who murdered and dismembered nine people he met online, in the nation's first enactment of ...

Dead Ringers, Swarm, A Very English Scandal, and more make up our list of miniseries that can be called masterpieces on Prime ...