This book is about juvenile and adult sons and daughters who kill their parents. The book moves far behind the statistical correlates of parricide by synthesizing the professional literature on parricide in general, matricide, patricide, double parricides, and familicides. The book explains the reasons behind the killings and includes in-depth discussion of issues related to prosecuting and defending parricide offenders. The book is enriched with its focus on clinical assessment, case studies, and follow-up of parricide offenders, as well as treatment, risk assessment, and prevention.