In recent years, the popularity of true-crime series, books, and podcasts has exploded, with audiences riveted by the horrifying details of these killings and the chilling methodologies of their perpetrators. Serial Killer looks at means, motive, and opportunity for each of these deadly monsters. The profiles ask: what made the murderers this way? Were they born to kill? What possibly went through their minds? How were they caught, and how did they pay for their crimes? And most importantly, what can we learn from this to prevent future atrocities? All the serial killers are arranged by nationality, and include John Wayne Gacy, David Berkowitz (Son of Sam), Jeffrey Dahmer, and Aileen Wuornos from the US; Ian Brady and Myra Hindley, the "Moors Murderers," who abducted and tortured children in northwestern England; Jos Vincente Matias, a Brazilian serial killer who cannibalized his victims; Russell Williams of Canada, who committed multiple murders and sexual assaults; and predators from Australia, China, Columbia, the Czech Republic, France, Greece, India, South Korea, and beyond.