約翰·道格拉斯是美國聯邦調查局的著名特工。他從事犯罪學研究，是美國聯邦調查局行為科學調查支援科負責人之一，有“現代福爾摩斯”的美譽，《沉默的羔羊》中聯邦特工傑剋·剋勞福德的原型。在犯罪行為分析以及現代刑偵技術領域具有極高的聲譽，對抓捕美國連環殺手居功至偉。

馬剋·奧爾沙剋是一位小說傢和電影製作人，編劇並製作瞭紀錄片《連環殺手的內心世界》，獲得美國電視藝術成就奬。

From legendary FBI profiler John Douglas and Mark Olshaker -- authors of the nonfiction international bestsellers "Mindhunter, Journey into Darkness, " and "Obsession" -- comes an unprecedented, insightful look at the root of all crime. Every crime is a mystery story with a motive at its heart. With the brilliant insight he brought to his renowned work inside the FBI's elite serial-crime unit, John Douglas pieces together motives behind violent sociopathic behavior. He not only takes us into the darkest recesses of the minds of arsonists, hijackers, bombers, poisoners, assassins, serial killers, and mass murderers, but also the seemingly ordinary people who suddenly kill their families or go on a rampage in the workplace. Douglas identifies the antisocial personality, showing surprising similarities and differences among various types of deadly offenders. He also tracks the progressive escalation of those criminals' sociopathic behavior. His analysis of such diverse killers as Lee Harvey Oswald, Theodore Kaczynski, and Timothy McVeigh is gripping, but more importantly, helps us learn how to anticipate potential violent behavior before it's too late.