The nature of murder -- Firearms, substance abuse, and murder -- Murder and the criminal justice system -- Intimate homicide -- Infanticide -- Patricide -- Other intrafamilial homicide -- Workplace homicide -- Bias-motivated homicide -- Terrorism and murder -- Internet and murder -- Youth gangs and homicide -- School killings -- Sexual killers -- Serial killers -- Mass murderers -- Self-killers -- Gerald and Charlene Gallego -- Sahel Kazemi -- Byran Koji Uyesugi -- Charles Stuart -- Sarah Marie Johnson -- Criminal homicide theories.