This book contains a collection of 10 biographies plus photos of some of the world's infamous serial killers, mass murderers, assassins and more. Truth can be stranger and darker than anything the imagination has to offer. The most twisted of souls at times hides beneath the most seemingly meek and mild mannered of people. Let's take a peek behind the curtain in the lives of Adam Lanza, Dr. Death: Wouter Basson, serial killer couple Fred and Rose West and more.