Homicidal and Nonhomicidal Child Molesters: Psychological, Phallometric, and Criminal Features

  • Philip Firestone
  • John M. Bradford
  • David M. Greenberg
  • Michel R. Larose
  • Susan Curry


Seventeen extrafamilial homicidal child molesters (HCM) were compared to 35 convicted extrafamilial child molesters (CM) who had not murdered, or attempted to murder, their victims. The two groups did not differ on age, IQ, education, history of marriage, or family history, although marriage rates of both groups were well below the national average. Similarly, both groups had high rates of features representing family instability. HCM more frequently victimized strangers. The results on the self-report psychological inventories, the Derogatis Sexual Functioning Inventory (DSFI) and the Buss–Durkee Hostility Inventory (BDHI), did not distinguish between the groups, although the DSFI revealed sexual inadequacy in both groups. The BDHI did not describe the groups as pathological. The Psychopathy Checklist—Revised Total Score, Factor 1, and Factor 2 described both groups as demonstrating high levels of psychopathy, with the HCM scoring significantly higher. Factor 1 and Factor 2 scores placed the HCM group in the 93rd and 82nd percentiles, respectively, compared to published norms for forensic patients. A greater proportion of HCM suffered from antisocial personality disorders and paraphilias, especially sexual sadism. Over 53% of the HCM, and none of the CM, were comorbid for pedophilia and sexual sadism. Significantly more HCM received three or more DSM III-R diagnoses. The phallometric assessments generally supported DSM diagnoses. The HCM demonstrated significantly higher levels of deviant arousal to pedophilic and adult assault stimuli. Police files revealed that, prior to the index offense, a significantly greater proportion of HCM had been charged with, or convicted of, violent nonsexual, and sexual offenses. The HCM had been charged with, or convicted of, more than 2.5 times as many criminal charges than the CM. A discriminant function analysis revealed that two variables, Factor 1 of the PCL-R and the number of violent entries in the police records, correctly predicted 78.6% of the HCM and 97.1% of the CM. Implications for understanding homicidal child molesters and for future research are discussed.

homicide psychopathy rape serial offenders sexual aggression 


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  1. Abel, G. G., Becker, J. V., Murphy, W. D., & Flanagan, B. (1981). Identifying dangerous child molesters. In R. B. Stuart (Ed.), Violent behavior: Social learning approaches to prediction, management and treatment (pp. 116-137). New York: Brunner/Mazel.Google Scholar
  2. Abel, G. G., Blanchard, E. B., & Barlow, D. H. (1981). Measurement of sexual arousal in several paraphilias: The effects of stimulus modality, instructional set and stimulus content on the objective. Behavior Research and Therapy, 19, 25-33.Google Scholar
  3. Abel, G. G., Becker, J. G., & Cunningham-Rathner, J. (1984). Complications, consent, and cognitions in sex between children and adults. International Journal of Law and Psychiatry, 7, 89-103.Google Scholar
  4. Abel, G. G., Becker, J. V., Cunningham-Rathner, J., Mittelman, M. S., & Rouleau, J. L. (1988). Multiple paraphilic diagnoses among sex offenders. Bulletin of the American Academy of Psychiatry and the Law, 16, 153-168.Google Scholar
  5. Alford, J. M., & Kasper C. J. (1987). Working through denial and resistance with the child molester. Corrective Social Psychiatry and Journal of Behavioral Technology Methods and Therapy, 33, 231-233.Google Scholar
  6. Allnutt, S. H., Bradford, J. M. W., Greenberg, D. M., & Curry, S. (1996). Co-morbidity of alcoholism and the paraphilias. Journal of Forensic Sciences, 41, 234-239.Google Scholar
  7. Barbaree, H. E., & Marshall, W. L. (1989). Erectile responses amongst heterosexual child molesters, father-daughter incest offenders and matched nonoffenders: Five distinct age preference profiles. Canadian Journal of Behavioural Science, 21, 70-82.Google Scholar
  8. Barbaree, H. E., Baxter, D. J., & Marshall, W. L. (1989). Brief research report: The reliability of the rape index in a sample of rapists and nonrapists. Violence and Victims, 4, 299-306.Google Scholar
  9. Baxter, D. J., Marshall, W. L., Barbaree, H. E., Davidson, P. R., & Malcolm, P. B. (1984). Deviant sexual behavior: Differentiating sex offenders by criminal and personal history, psychometric measures, and sexual response. Criminal Justice and Behavior, 11, 477-501.Google Scholar
  10. Blader, J.C., & Marshall, W.L. (1989). Is assessment of sexual arousal in rapists worthwhile? A critique of current methods and the development of a response compatibility approach. Clinical Psychology Review, 9, 569-587.Google Scholar
  11. Brittain, R. P. (1970). The sadistic murderer. Medicine, Science & the Law, 10, 198-207.Google Scholar
  12. Burgess, A. W., Hartman, C. R., Ressler, R. K., Douglas, J. E., & McCormack, A. (1986). Sexual homicide: A motivational model. Journal of Interpersonal Violence, 1, 251-272.Google Scholar
  13. Busch, K. A., & Cavanaugh, J. L. (1986). The study of multiple murder: Preliminary examination of the interface between epistemology and methodology. Journal of Interpersonal Violence, 1, 5-23.Google Scholar
  14. Buss, A. H. (1961). The psychology of aggression. New York: John Wiley and Sons.Google Scholar
  15. Buss, A. H., & Durkee, A. (1957). An inventory for assessing different kinds of hostility. Journal of Consulting and Clinical Psychology, 21, 343-349.Google Scholar
  16. Canadian Centre for Justice Statistics (1995). Children and youths as victims of violent crimes (DHHS Publication No. 85-002). Ottawa, ON: Statistics Canada.Google Scholar
  17. Derogatis, L. R. (1978). Derogatis sexual functioning inventory. Baltimore: Clinical Psychometrics Research.Google Scholar
  18. Derogatis, L. R. (1980). Psychological assessment of psychosexual functioning. Psychiatric Clinics of North America, 3, 113-131.Google Scholar
  19. Derogatis, L.R., & Melisaratos, N. (1979). The DSFI: A multidimensional measure of sexual functioning. Journal of Sex & Marital Therapy, 5(3), 244-282.Google Scholar
  20. Dietz, P. E. (1986). Mass, serial and sensational homicides. Bulletin of the New York Academy of Medicine, 62, 477-491.Google Scholar
  21. Dietz, P. E., Hazelwood, R. R., & Warren, J. (1990). The sexually sadistic criminal and his offenses. Bulletin of the American Academy of Psychiatry and the Law, 18, 163-178.Google Scholar
  22. Firestone, P., Bradford, J. M., Greenberg, D. M., & Larose, M. R. (1997). Characteristics of homicidal sex offenders: Psychological, phallometric, and diagnostic features (submitted for publication).Google Scholar
  23. Firestone, P., Bradford, J. M., Greenberg, D. M., McCoy, M., Curry, S., & Larose, M. R. (1997). Prediction of recidivism in extrafamilial child molesters based on court related assessments (submitted for publication).Google Scholar
  24. Geen, R. G., & George, R. (1969). Relationship of manifest aggressiveness to aggressive word associations. Psychological Reports, 25, 711-714.Google Scholar
  25. Gibbs, L. E. (1983). Validity and reliability of the Michigan Screening Test: A review. Drug and Alcohol Dependence, 12, 279-285.Google Scholar
  26. Gratzer, T., & Bradford, J. M. W. (1995). Offender and offense characteristics of sexual sadists: A comparative study. Journal of Forensic Sciences, 40, 450-455.Google Scholar
  27. Hanson, R. K., & Bussière, M. T. (1998). Predictors of relapse: A meta-analysis of sexual offender recidivism studies. Journal of Consulting and Clinical Psychology, 66, 348-362.Google Scholar
  28. Hanson, R. K., & Slater, S. (1988). Sexual victimization in the history of child molesters: A review. Annals of Sex Research, 1, 485-499.Google Scholar
  29. Hanson, K. R., Cox, B., & Woszcsyna, C. (1991). Sexuality, personality and attitude questionnaires for sexual offenders: A review (Supply and Services Canada JS4-1/1991-13). Solicitor General Canada: Ministry Secretariat.Google Scholar
  30. Hanson, R. K., Scott, H., & Steffy, R. A. (1995). A comparison of child molesters and nonsexual criminals: Risk predictors and long-term recidivism. Journal of Research in Crime and Delinquency, 32, 325-337.Google Scholar
  31. Hare, R. D. (1991a). The Hare Psychopathy Checklist—Revised. Toronto: Multi-health Systems.Google Scholar
  32. Hare, R. D. (1991b). Manual for the Revised psychopathy Checklist. Toronto: Multi-Health Systems.Google Scholar
  33. Hare, R. D., Harpur, T. J., Hakstian, A. R., Forth, A. E., Hart, S. D., & Newman, J. P. (1990). The Revised Psychopathy Checklist: Relability and factor structure. Psychological Assessment: A Journal of Consulting and Clinical Psychology, 2, 338-341.Google Scholar
  34. Hare, R. D., Forth, A. E., & Strachan, K. E. (1992). Psychopathy and crime across the life span. In R. D. Peters, J. McMahon, & V. L. Quinsey (Eds.), Aggression and violence throughout the life span (pp. 285-300). Newbury Park, CA: Sage.Google Scholar
  35. Harpur, T. S., Hakstian, A. R., & Hare, R. D. (1988). Factor structure of the Psychopathy Checklist. Journal of Consulting and Clinical Psychology, 56, 741-747.Google Scholar
  36. Harris, G. T., Rice, M. E., & Quinsey, V. L. (1994). Psychopathy as a taxon: Evidence that Psychopaths are a discrete class. Journal of Consulting and Clinical Psychology, 62, 387-397.Google Scholar
  37. Hilton, N. Z. (1993). Childhood sexual victimization and lack of empathy in child molesters: Explanation or excuse? International Journal of Offender Therapy and Comparative Criminology, 37, 287-296.Google Scholar
  38. Hucker, S., Langevin, R., & Bain, J. (1988). A double blind trial of sex drive reducing medication in pedophiles. Annals of Sex Research, 1, 227-242.Google Scholar
  39. Lalumière, M. L. & Quinsey, V. L. (1993). The sensitivity of phallometric measures with rapists. Annals of Sex Research, 6, 123-138.Google Scholar
  40. Langevin, R., Ben-Aron, M. H., Wright, P., Marchese, V., & Handy, L. (1988). The sex killer. Annals of Sex Research, 1, 263-301.Google Scholar
  41. Magruder-Habid, K., Durand, A. M. & Frey, K. A. (1991). Alcohol abuse and alcoholism in primary health care settings. Journal of Family Practice, 32, 406-413.Google Scholar
  42. Marshall, W. L., Barbaree, H. E., & Eccles, A. (1991). Early onset and deviant sexuality in child molesters. Journal of Interpersonal Violence, 6, 323-336.Google Scholar
  43. Pawlak, A. E. (1994). Factors associated with sexual aggression among rapists and non-offenders, Unpublished doctoral dissertation. Ottawa: Carleton University.Google Scholar
  44. Pawlak, A. E., Boulet, J. R., & Bradford, J. M. (1991). Discriminant analysis of the Sexual-Functioning Inventory with intrafamilial and extrafamilial child molesters. Archives of Sexual Behavior, 20, 27-34.Google Scholar
  45. Prentky, R. A., Burgess, A. W., Rokous, F., Lee, A., Hartman, C. R., Ressler, R. K., & Douglas, J. E. (1989). The presumptive role of fantasy in serial sexual homicide. American Journal of Psychiatry, 146, 887-891.Google Scholar
  46. Prentky, R. A., Knight, R. A., & Lee, A. (1997). Risk factors associated with recidivism among extrafamilial child molesters. Journal of Consulting and Clinical Psychology, 65, 141-149.Google Scholar
  47. Quinsey, V. (1990). Sexual violence. In R. Bluglass & P. Bowden (Eds.), Principles and practice of forensic psychiatry (pp. 563-570). New York: Churchill Livingstone.Google Scholar
  48. Quinsey, V. (1995). The prediction and explanation of criminal violence. International Journal of Law and Psychiatry, 18, 117-127.Google Scholar
  49. Quinsey, V. L., Chaplin, T. C., & Carrigan, W. F. (1979). Sexual preferences among incestuous and nonincestuous child molesters. Behavior Therapy, 10, 562-565.Google Scholar
  50. Quinsey, V. L., Chaplin, T. C., & Upfold, D. (1984). Sexual arousal to nonsexual violence and sadomasochistic themes among rapists and non-sex-offenders. Journal of Consulting and Clinical Psychology, 52, 651-657.Google Scholar
  51. Quinsey, V. L., Lalumière, M. L., Rice, M. E., & Harris, G. T. (1995). Predicting sexual offenses. In J. C. Campbell (Ed.), Assessing dangerousness: Violence by sexual offenders, batterers, and child abusers (pp. 114-136). Thousand Oaks, CA: Sage.Google Scholar
  52. Quinsey, V. L., Rice, M. E., & Harris, G. T. (1995). Actuarial prediction of sexual recidivism. Journal of Interpersonal Violence, 10, 85-105.Google Scholar
  53. Rada, R. T. (1975). Alcoholism and forcible rape. American Journal of Psychiatry, 132, 444-446.Google Scholar
  54. Rada, R. T., Laws, D. R., & Kellner, R. (1976). Plasma testosterone levels in rapists. Psychosomatic Medicine, 38, 257-268.Google Scholar
  55. Ressler, R. K., Burgess, A. W., & Douglas, J. E. (1983). Rape and rape-murder: One offender and twelve victims. American Journal of Psychiatry, 140, 36-40.Google Scholar
  56. Ressler, R. K., Burgess, A. W., Douglas, J. E., Hartman, C. K., & D'Agostino, R. B. (1986). Sexual killers and their victims: Identifying patterns through crime scene analysis. Journal of Interpersonal Violence, 1, 288-308.Google Scholar
  57. Ressler, R. K., Burgess, A. W., Hartman, C. R., Douglas, J. E., & McCormack, A. (1986). Murderers who rape and mutilate. Journal of Interpersonal Violence, 1, 273-287.Google Scholar
  58. Revitch, E. (1965). Sex murder and the potential sex murderer. Diseases of Nervous System, 26, 640-648.Google Scholar
  59. Rice, M. E., Harris, G. T., & Quinsey, V. L. (1990). A follow-up of rapists assessed in a maximum-security psychiatric facility. Journal of Interpersonal Violence, 5, 435-448.Google Scholar
  60. Sarason, T. G. (1961). Intercorrelations among measures of hostility. Journal of Clinical Psychology, 17, 192-195.Google Scholar
  61. Segal, Z. V., & Marshall, W. L. (1985). Heterosexual social skills in a population of rapists and child molesters. Journal of Consulting and Clinical Psychology, 53, 55-63.Google Scholar
  62. Selzer, M. L. (1971). The Michigan Alcoholism Screening Test: The quest for a new diagnostic instrument. American Journal of Psychiatry, 127, 1653-1658.Google Scholar
  63. Selzer, M. L., Vinokur, A., & van Rooijen, L. (1975). A self-administered Short Michigan Alcoholism Screening Test (SMAST). Journal of Studies of Alcohol, 36, 117-126.Google Scholar
  64. Serin, R. C., Malcolm, P. B., Khanna, A., & Barbaree, H. E. (1994). Psychopathy and deviant sexual arousal in incarcerated sexual offenders. Journal of Interpersonal Violence, 9, 3-11.Google Scholar
  65. Swigert, V. A., Farrell, R. A., & Yoels, W. C. (1976). Sexual homicide: Social, psychological, and legal aspects. Archives of Sexual Behavior, 5, 391-401.Google Scholar
  66. Warren, J. I., Hazelwood, R. R., & Dietz, P. E. (1996). The sexually sadistic serial killer. Journal of Forensic Science, 41, 970-974.Google Scholar

Copyright information

© Plenum Publishing Corporation 1998

Authors and Affiliations

  • Philip Firestone
    • 1
    • 2
    • 3
  • John M. Bradford
    • 2
    • 3
  • David M. Greenberg
    • 2
    • 3
  • Michel R. Larose
  • Susan Curry
    • 3
  1. 1.School of PsychologyUniversity of OttawaOttawaCanada
  2. 2.Department of PsychiatryUniversity of OttawaOttawaCanada
  3. 3.Sexual Behaviors Clinic and Forensic Service, Royal Ottawa HospitalOttawaCanada

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