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An investigation into sexual killing: considerations for assessment, understanding motivation and future research

By Adam John Carter


Objective: This thesis reports an investigation into characteristics of sexual killers and their\ud offences. Sexual killing was defined where there was a disclosure by the perpetrator that the\ud killing had a sexual element, or there was evidence of sexual behaviour prior to or following the\ud killing, or the victim’s clothes had been disturbed in a way that could not be explained by simply\ud movement of the body. Consideration was given to perpetrators in terms of their childhood,\ud adulthood, crimes and victim to understand better perpetrators of these crimes.\ud Method: A template was developed to code the files of a sample of sexual killers for the presence\ud or absence of items relevant to understanding perpetrators. Analysis of the data was undertaken to\ud determine the characteristics of sexual killers. The data were examined to consider perpetrators\ud who victimised a stranger, used a “hands-on” method of killing, disclosed fantasy, and were\ud considered a loner at the time of the offence. Logistic regression analysis was carried out to\ud identify variables that predicated an offender’s membership of these four groups.\ud Results: Evidence was found to suggest that those perpetrators who victimise strangers are a\ud distinct group, while perpetrators who use a “hands on” method of killing showed a more\ud controlled killing with less excessive injury. In addition, perpetrators who disclosed fantasy\ud experienced problems with parental and childhood social relationships and shared a number of\ud characteristics with perpetrators who were considered loners. A developmental model of sexual\ud killing based on the findings of this research was proposed.\ud Conclusions: The findings supported previous research suggesting that being a loner is a\ud characteristic of sexual killers and an indication that it is associated with those perpetrators who\ud disclose fantasy. There was also a suggestion that the offences of sexual killers who victimise\ud strangers are driven by sexual motivation and that strangulation itself is sexually significant.\ud Future assessment of sexual killers should focus upon factors identified in this study to inform\ud treatment and also consider the possible implications for risk assessment. Steps towards validation\ud of the model proposed in this study will help with further understanding the development and\ud motivation of sexual killers

Publisher: University of Leicester
Year: 2009
OAI identifier:

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  1. (2007). A comparison of rapists and sexual murderers on demographic and selected psychometric measures. In doi
  2. (1991). A New Century of Sex Killers.
  3. (2007). A non-pacifist argument against capital punishment. Retrieved
  4. (2000). A Proposed socio-legal classification of unlawful killing with special reference to serial killing. doi
  5. (1994). A Rorschach investigation of sexual homicide, doi
  6. (1947). A study of William Heirens. doi
  7. A working definition of serial murder and the reduction of linkage blindness.
  8. (1973). Aggression. Englewood Cliffs, doi
  9. (1990). An integrated theory of the eitiology of sexual offending. In doi
  10. (2002). An introduction to logistic regression analysis and reporting. doi
  11. (1960). An introduction to social psychology. doi
  12. (1997). Antisocial personality disorder, sexual sadism, malignant narcissism, and serial murder. doi
  13. (2001). Applying regression and correlation,
  14. (1996). Bad men do what good men dream: A forensic psychiatrist illuminates the darker side of human behaviour. Washington DC: doi
  15. (1999). Behavioral perspectives in violent behaviour. doi
  16. (2000). Brittain’s Sadistic Murderer Syndrome reconsidered: An associative account of the aetiology of sadistic sexual fantasy, doi
  17. (1988). Cerebral damage and dysfunction in sexually aggressive men. doi
  18. (2003). Characteristic of sexual homicides committed by psychopathic and nonpsychopathic offenders. doi
  19. (1997). Classifying homicides and forensic evaluations.
  20. (1999). combining risks for sexual and violent recidivism. In doi
  21. (1986). Compulsive Killers: The story of modern multiple murder. doi
  22. (2002). Constructing and testing a framework for dynamic risk assessment. Sexual Abuse: doi
  23. (1997). Countess Dracula: The Life and times of Elizabeth Bathory the Blood Countess.
  24. (1950). Crime and the sexual psychopath.
  25. (1992). Crime classification manual.
  26. (1998). Criminal and behavioural aspects of juvenile sexual homicide. doi
  27. (1994). Criminal Shadows. England :
  28. (1986). Dangerous behaviour, the law, and mental disorder. doi
  29. (1989). Developmental antecedents of sexual aggression, doi
  30. (1995). Diagnostic patterns among three violent offender types.
  31. (2000). Discovering statistics using SPSS for windows: Advanced techniques for the beginner. London :
  32. (2001). Explaining paraphilias and lust murder: Toward an integrative model. doi
  33. (1991). Forensic Clues to Murder: Forensic Science in the art of detection.
  34. (1990). Forensic sexology: Paraphilic serial rape (biastophilia) and lust murder (erotophonophilia).
  35. (1980). Gynocide and unprovoked attacks on women.
  36. (1998). Homicidal and nonhomicidal child molesters: Psychological, phallometric, and criminal features. Sexual Abuse: doi
  37. (1998). Homicidal sex offenders: Psychological, phallometric and diagnostic features. doi
  38. (1996). Homicide: a psychiatric perspective. doi
  39. (2005). Introduction to statistics in Psychology, (3rd ed)
  40. (1991). Lust murder: The psychodynamics of the killer and the psychosexual aspects of the crime.
  41. (1993). Malignant sex and aggression: An overview of serial sexual homicide.
  42. (1991). Manual for the psychopathy checklist-revised. Toronto: Multi-Health Systems.
  43. (2003). Manual for the revised psychopathy checklist (2nd ed.). Toronto: Multi-Health Systems.
  44. (1994). Measuring impulsivity and examining its relation to delinquency. doi
  45. (1980). Men’s erotic fantasies. doi
  46. (2004). Mental illness in people who kill strangers: Longitudinal study and national clinical survey. doi
  47. (1924). Murder and its motives.
  48. (1976). Murder and madness. doi
  49. (1999). Murder and serious sexual assault: What criminal histories can reveal about future serious offending.
  50. (1998). Murder by numbers. London. Andre Deutsch Gratzer,
  51. (1977). Murder in Space City.
  52. Mutilation-murder cases in Japan.
  53. (1992). Neuropsychological and clinical correlates of murder and other forms of extreme violence in a forensic psychiatric population. doi
  54. (1990). Outpatient treatment of the sexually motivated murderer and potential murderer. doi
  55. (1998). Predicting relapse: A meta-analysis of sexual offender recidivism studies. doi
  56. (2002). Profiles in the offending process of nonserial sexual murderers. doi
  57. (1999). Profiling killers: A revised classification model for understanding sexual murder. doi
  58. (1978). Psychiatric observations and interpretations of bite mark evidence in multiple murderers. doi
  59. (1998). Psychopathia sexualis. The complete English-language translation. New York: Arcade. (Original work published 1886)
  60. (1997). Psychopathology and personality in juvenile sexual homicide offenders.
  61. (1971). Rape offenders and their victims. doi
  62. (1998). Reduced prefrontal and increased subcortical brain functioning assessed using position emission tomography in predatory and affective murderers. doi
  63. (2000). Relapse prevention with sexual murderers. In doi
  64. (1989). Report of the House of Lords doi
  65. (1991). Results of a survey of forensic psychiatrists on the validity of the sadistic personality disorder diagnosis. doi
  66. (2000). Risk assessment: First in a series of ATSA informational packages, Beaverton: Association for the Treatment of Sexual Abusers.
  67. (1949). Royal Commission on Capital Punishment, doi
  68. (1983). Sadistic fantasy, sadistic behaviour and offending. doi
  69. (2007). Sadistic sexual offenders. In
  70. (1999). Satanism and mass
  71. (2007). Serial killers and sexual murderers. In
  72. (1999). Serial murder and sexual homicide. doi
  73. (1997). Serial murderers and their victims. doi
  74. (2001). Serial sexual homicide: Biological, psychological and sociological aspects. doi
  75. (1991). Sex crimes. doi
  76. (1957). Sex murder and aggression.
  77. (1965). Sex murder and the potential sex murderer.
  78. (1957). Sex perversion and sex crimes: A psychocultural examination of the causes, nature and criminal manifestations of sex perversions.
  79. (1980). Sex-related deaths. In
  80. (1989). Sexual attraction to corpses: A psychiatric review of necrophilia.
  81. (1987). Sexual crimes and confrontations: A study of victims and offenders.
  82. (1992). Sexual homicide and the Rorschach: A Rorschach case study of sexual homicide, doi
  83. (1994). Sexual homicide by adolescents. doi
  84. (1993). Sexual homicide in Canada: A descriptive analysis. doi
  85. (1986). Sexual homicide: A motivational model. doi
  86. (2007). Sexual Homicide: Differentiating catathymic and compulsive murders. doi
  87. (1988). Sexual homicide: Patterns and Motives. doi
  88. (1976). Sexual homicide: social, psychological and legal aspects. doi
  89. (2000). Sexual homicides and their classification according to motivation: A report from Argentina, doi
  90. (1986). Sexual killers and their victims: Identifying patterns through crime scene analysis. doi
  91. (1975). Sexual murder: Psychopathology and psychiatric jurisprudential considerations. doi
  92. (1994). Sexual murder. doi
  93. (2007). Sexual murderers: Myth and reality. In
  94. (2005). Sexual murderers’ implicit theories. doi
  95. (1995). Sexually addicted lust murderers. doi
  96. (2002). SPSS for Institutional Researchers.
  97. (1981). Statistical methods for rates and proportions (2nd ed.). doi
  98. (1988). Statistical power for the behavioural sciences.
  99. (1988). Stranger’ child murderer: issues relating to causes and controls. doi
  100. (1991). The aesthetics of murder: A study in romantic literature and contemporary culture. doi
  101. (1992). The Bible’s teaching on capital punishment.
  102. (1992). The evaluation and treatment of sexual violence, necrophilia, and asphyxiophilia.
  103. (2007). The factors distinguishing sexual murderers from sexual aggressors: A multivariate analysis. In
  104. (2008). The future of risk assessment. Paper presented at the National Organisation for the Treatment of Abusers,
  105. (1932). The Holy Bible doi
  106. (2005). The influence of brain abnormalities on psychosocial development, criminal history and paraphilias in sexual murderers. doi
  107. The killers among us: An examination of serial murder and its investigation. doi
  108. (1965). The lust murderer.
  109. (1973). The murdering mind.
  110. (1999). The nature and dynamics of sexual homicide: An integrative review. doi
  111. (2000). The nature and dynamics of sexual homicide. doi
  112. (2000). The origins of sexual offending. doi
  113. (2006). The paraphilia-related disordered: An investigation of the relevance of the concept in sexual murderers. doi
  114. (2001). The potential sex murderer: Ominous signs, risk assessment. doi
  115. (1989). The presumptive role of fantasy in serial sexual homicide.
  116. (1992). The psychology of the obsessed compulsive killer.
  117. (1981). The psychopathology of homicide.
  118. (1994). The Rorschach assessment of aggressive and psychopathic personalities. doi
  119. (1970). The sadistic murderer.
  120. (1988). The serial and mass murderer: Patterns, differentiation, pathology.
  121. (1993). The serial killer industry', doi
  122. (1996). The serial killers: A study in the psychology of violence.
  123. (1994). The serial murderer’s motivations: an interdisciplinary review. doi
  124. (1988). The sex killer. doi
  125. (1990). The sexually sadistic criminal and his offences. doi
  126. (1996). The sexually sadistic serial killer. doi
  127. (1986). The study of multiple murder: Preliminary examination of the interface between epistemology and methodology. doi
  128. (1967). The subculture of violence: towards an integrated theory in criminology. doi
  129. (2003). Wicked beyond belief: The hunt for the Yorkshire ripper. Harper Collins.
  130. (2005). XYY chromosome abnormalitiy in sexual homicide perpetrators. doi

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