Preface. Part I: Psychopaths. I. Psychopaths and Their Nature: Some Implications for Understanding Human Predatory Violence; R.D. Hare. II. Psychopathy, Violence and Brain Imaging; A. Raine. III. Emotions and Psychopathy; C.J. Patrick. IV. Neurobiology of the Psychopath; J.S. Grisolia. Part II: Serial Killers. V. Concept and History of the Serial Killer; J. Sanmartin. VI. Motives of the Serial Killer; C.A. Skrapec. VII. Psychopathy, Sadism and Serial Killing; D.J. Cooke. Part III: Psychosocial Aspects and Treatment. VIII. Psychosocial Contributions to Violence and Psychopathy; J. McCord. IX. Is Effective Treatment of Psychopathy Possible? What We Know and What We Need to Know; F. Loesel.