Learn About The Most Evil Doctors To Have Ever Lived 

This Book Is Very Creepy, Don't Turn Your Lights OFF

The term “serial killer” was officially first used in a 1950 book titled “The Complete Detective”. Since then it has been chiefly used to refer an individual who murders people for a form of psychological satisfaction. While there seems to be a consensus on the psychological ingredient of serial killing, there however remains a dispute regarding the number of victims of a supposed serial killer. Whereas the FBI puts it as “series of two or more murders…” psychologists and other related professionals define a serial killer “as a person who murders three or more people”. Despite this apparent disparity in the definitions of a serial killer, one thing is certain: they largely murder people at unprecedented rate. This article gives an insight into the lives of 10 of the most evil serial killers to ever live.