Relying on a sample of 1,381 US-based multiple homicide offenders (MHOs), we study the duration of the careers of this extremely violent category of offenders through Kaplan–Meier estimation and Cox Proportional Hazard regression. We investigate the characteristics of such careers in terms of length and we provide an inferential analysis investigating correlates of career duration. The models indicate that MHOs employing multiple methods, younger MHOs and MHOs that acted in more than one US state have higher odds of longer careers. When controlling for career-based attributes, female MHOs are also correlated with longer careers.
AkaikeH. (1974). A new look at the statistical model identification. IEEE Transactions on Automatic Control, 19(6), 716–723. https://doi.org/10.1109/TAC.1974.1100705
2.
ArndtW. B.HietpasT.KimJ. (2004). Critical characteristics of male serial murderers. American Journal of Criminal Justice, 29(1), 117–131. https://doi.org/10.1007/BF02885707
3.
BeasleyJ. O. (2004). Serial murder in America: Case studies of seven offenders. Behavioral Sciences & the Law, 22(3), 395–414. https://doi.org/10.1002/bsl.595
4.
BeauregardE.MartineauM. (2014). No body, no crime? The role of forensic awareness in avoiding police detection in cases of sexual homicide. Journal of Criminal Justice, 42(2), 213–220. https://doi.org/10.1016/j.jcrimjus.2013.06.007
5.
BeauregardE.StoneM. R.ProulxJ.MichaudP. (2008). Sexual murderers of children: Developmental, precrime, crime, and postcrime factors. International Journal of Offender Therapy and Comparative Criminology, 52(3), 253–269. https://doi.org/10.1177/0306624X07303907
6.
BendaB. B. (2005). Gender differences in life-course theory of recidivism: A survival analysis. International Journal of Offender Therapy and Comparative Criminology, 49(3), 325–342. https://doi.org/10.1177/0306624X04271194
Box-SteffensmeierJ. M.CunhaR. C.VarbanovR. A.HohY. S.KnisleyM. L.HolmesM. A. (2015). Survival analysis of faculty retention and promotion in the social sciences by gender. PLoS One, 10(11), e0143093. https://doi.org/10.1371/journal.pone.0143093
9.
BransonA. L. (2013). African American serial killers: Over-represented yet underacknowledged. The Howard Journal of Criminal Justice, 52(1), 1–18. https://doi.org/10.1111/j.1468-2311.2012.00731.x
10.
BrennanP. A.RaineA. (1997). Biosocial bases of antisocial behavior: Psychophysiological, neurological, and cognitive factors. Clinical Psychology Review, 17(6), 589–604. https://doi.org/10.1016/S0272-7358(97)00036-6
CauffmanE.SteinbergL.PiqueroA. R. (2005). Psychological, neuropsychological and physiological correlates of serious antisocial behavior in adolescence: The role of self-control. Criminology, 43(1), 133–176. https://doi.org/10.1111/j.0011-1348.2005.00005.x
14.
ChanH. C. (Oliver)MyersW. C.HeideK. M. (2010). An empirical analysis of 30 years of U.S. juvenile and adult sexual homicide offender data: Race and age differences in the victim–offender relationship. Journal of Forensic Sciences, 55(5), 1282–1290. https://doi.org/10.1111/j.1556-4029.2010.01448.x
CulhaneS. E.HilstadS. M.FrengA.GrayM. J. (2011). Self-reported psychopathology in a convicted serial killer. Journal of Investigative Psychology and Offender Profiling, 8(1), 1–21. https://doi.org/10.1002/jip.129
DeFronzoJ.DittaA.HannonL.ProchnowJ. (2007). Male serial homicide: The influence of cultural and structural variables. Homicide Studies, 11(1), 3–14. https://doi.org/10.1177/1088767906297434
DeLisiM.BungaR.HeirigsM. H.EricksonJ. H.HochstetlerA. (2019). The past is prologue: Criminal specialization continuity in the delinquent career. Youth Violence and Juvenile Justice, 17(4), 335–353. https://doi.org/10.1177/1541204018809839
22.
DeLisiM.RuelasM.KruseJ. E. (2019). Who will kill again? The forensic value of 1st degree murder convictions. Forensic Science International: Synergy, 1, 11–17. https://doi.org/10.1016/j.fsisyn.2019.02.054
23.
DeLisiM.SchererA. M. (2006). Multiple homicide offenders: Offense characteristics, social correlates, and criminal careers. Criminal Justice and Behavior, 33(3), 367–391. https://doi.org/10.1177/0093854806286193
24.
EggerS. A. (1997). The killers among us: An examination of serial murder and its investigation. Prentice Hall.
25.
FarringtonD. P.TtofiM. M.CragoR. V.CoidJ. W. (2014). Prevalence, frequency, onset, desistance and criminal career duration in self-reports compared with official records. Criminal Behavior and Mental Health, 24(4), 241–253. https://doi.org/10.1002/cbm.1930
26.
FoxJ. A.LevinJ. (1994). Overkill: Mass murder and serial killing exposed (Softcover reprint of the original 1st ed. 1994). Springer Verlag.
27.
FoxJ. A.LevinJ. (1998). Multiple homicide: Patterns of serial and mass murder. Crime and Justice, 23, 407–455. https://doi.org/10.1086/449274
GurianE. A. (2017). Reframing serial murder within empirical research: Offending and adjudication patterns of male, female, and partnered serial killers. International Journal of Offender Therapy and Comparative Criminology, 61(5), 544–560. https://doi.org/10.1177/0306624X15598572
HickeyE. W. (2015). Serial murderers and their victims (7th ed.). Wadsworth Pub Co.
34.
HickeyE. W.WaltersB. K.DrislaneL. E.PalumboI. M.PatrickC. J. (2018). Deviance at its darkest: Serial murder and psychopathy. In PatrickC. J. (Ed.), Handbook of psychopathy (2nd ed., pp. 570–584). The Guilford Press.
35.
HillA.HabermannN.BernerW.BrikenP. (2007). Psychiatric disorders in single and multiple sexual murderers. Psychopathology, 40(1), 22–28. https://doi.org/10.1159/000096386
36.
HodgkinsonS.PrinsH.Stuart-BennettJ. (2017). Monsters, madmen. . . and myths: A critical review of the serial killing literature. Aggression and Violent Behavior, 34, 282–289. https://doi.org/10.1016/j.avb.2016.11.006
37.
JamesJ.BeauregardE. (2020). Murderer vs investigator: Factors influencing the resolution of sexual homicide cases. Police Practice and Research, 21(2), 172–186. https://doi.org/10.1080/15614263.2018.1526683
JamesJ.ProulxJ. (2016). The modus operandi of serial and nonserial sexual murderers: A systematic review. Aggression and Violent Behavior, 31, 200–218. https://doi.org/10.1016/j.avb.2016.09.006
40.
JenkinsP. (1994). Using murder: The social construction of serial homicide (1st ed.). Routledge.
41.
JuodisM.WoodworthM.PorterS.Ten BrinkeL. (2009). Partners in crime: A comparison of individual and multi-perpetrator homicides. Criminal Justice and Behavior, 36(8), 824–839. https://doi.org/10.1177/0093854809337822
42.
KelleherM. D.KelleherC. L. (1998). Murder most rare: The female serial killer (pp. xii, 213). Praeger Publishers/Greenwood Publishing Group.
43.
KeltyS. F.JulianR.RossA. (2013). Dismantling the Justice Silos: Avoiding the pitfalls and reaping the benefits of information-sharing between forensic science, medicine and law. Forensic Science International, 230(1), 8–15. https://doi.org/10.1016/j.forsciint.2012.10.032
44.
KraemerG. W.LordW. D.HeilbrunK. (2004). Comparing single and serial homicide offenses. Behavioral Sciences & the Law, 22(3), 325–343. https://doi.org/10.1002/bsl.581
45.
LambertP. C.RoystonP. (2009). Further development of flexible parametric models for survival analysis. The Stata Journal, 9(2), 265–290. https://doi.org/10.1177/1536867X0900900206
MacKenzieT.GiffordA. H.SabadosaK. A.QuintonH. B.KnappE. A.GossC. H.MarshallB. C. (2014). Longevity of patients with cystic fibrosis in 2000 to 2010 and beyond: Survival analysis of the cystic fibrosis foundation patient registry. Annals of Internal Medicine, 161(4), 233–241. https://doi.org/10.7326/M13-0636
MitchellH.AamodtM. G. (2005). The incidence of child abuse in serial killers. Journal of Police and Criminal Psychology, 20(1), 40–47. https://doi.org/10.1007/BF02806705
50.
MortonR. J.TillmanJ. M.GainesS. J. (2014). Serial murder: Pathways for investigations. Justice Department - Federal Bureau of Investigation.
51.
MyersW. C. (2004). Serial murder by children and adolescents. Behavioral Sciences & the Law, 22(3), 357–374. https://doi.org/10.1002/bsl.590
52.
National Research Council. (2009). Strengthening forensic science in the United States: A path forward. National Academies Press.
53.
OsborneJ. R.SalfatiC. G. (2014). Re-conceptualizing “cooling-off periods” in serial homicide. Homicide Studies, 19(2), 188–205. https://doi.org/10.1177/1088767914526716
54.
PakkanenT.ZappalàA.BoscoD.BertiA.SanttilaP. (2015). Can hard-to-solve one-off homicides be distinguished from serial homicides? Differences in offence behaviors and victim characteristics. Journal of Criminal Psychology, 5, 216–232. https://doi.org/10.1108/JCP-01-2015-0005
55.
PiqueroA. R.BrameR.LynamD. (2004). Studying criminal career length through early adulthood among serious offenders. Crime & Delinquency, 50(3), 412–435. https://doi.org/10.1177/0011128703260333
56.
PiqueroA. R.FarringtonD. P.BlumsteinA. (2007). Key issues in criminal career research: New analyses of the Cambridge study in delinquent development. Cambridge University Press.
57.
QuinetK. (2011). Prostitutes as victims of serial homicide: Trends and case characteristics, 1970-2009. Homicide Studies, 15(1), 74–100. https://doi.org/10.1177/1088767910397276
58.
RaineA. (1992). Schizotypal and borderline features in psychopathic criminals. Personality and Individual Differences, 13(6), 717–721. https://doi.org/10.1016/0191-8869(92)90242-H
59.
RealeK.BeauregardE. (2019). Body recovery after the “First 48”: Implications for sexual homicide investigations. Homicide Studies, 23(2), 126–144. https://doi.org/10.1177/1088767918795209
60.
RhodesW. (1989). The criminal career: Estimates of the duration and frequency of crime commission. Journal of Quantitative Criminology, 5(1), 3–32. https://doi.org/10.1007/BF01066259
61.
RoystonP.ParmarM. K. B. (2002). Flexible parametric proportional-hazards and proportional-odds models for censored survival data, with application to prognostic modeling and estimation of treatment effects. Statistics in Medicine, 21(15), 2175–2197. https://doi.org/10.1002/sim.1203
62.
RulliE.GhilottiF.BiagioliE.PorcuL.MarabeseM.D’IncalciM.BelloccoR.TorriV. (2018). Assessment of proportional hazard assumption in aggregate data: A systematic review on statistical methodology in clinical trials using time-to-event endpoint. British Journal of Cancer, 119(12), 1456–1463. https://doi.org/10.1038/s41416-018-0302-8
63.
Salafranca BarredaD. (2021). The application of Newton and Swoope’s geographical profile to serial killers. Journal of Investigative Psychology and Offender Profiling, 18(1), 68–78. https://doi.org/10.1002/jip.1566
64.
SalfatiC. G.BatemanA. L. (2005). Serial homicide: An investigation of behavioral consistency. Journal of Investigative Psychology and Offender Profiling, 2(2), 121–144. https://doi.org/10.1002/jip.27
65.
SalfatiC. G.LabuschagneG. N.HorningA. M.SorochinskiM.WetJ. D. (2015). South African serial homicide: Offender and victim demographics and crime scene actions. Journal of Investigative Psychology and Offender Profiling, 12(1), 18–43. https://doi.org/10.1002/jip.1425
66.
SchlesingerL. B.RamirezS.TusaB.JarvisJ. P.ErdbergP. (2017). Rapid-sequence serial sexual homicides. The Journal of the American Academy of Psychiatry and the Law, 45(1), 72–80.
67.
SinghR.MukhopadhyayK. (2011). Survival analysis in clinical trials: Basics and must know areas. Perspectives in Clinical Research, 2(4), 145–148. https://doi.org/10.4103/2229-3485.86872
68.
SmithL. G.AkersR. L. (1993). A comparison of recidivism of Florida’s community control and prison: A five-year survival analysis. Journal of Research in Crime and Delinquency, 30(3), 267–292. https://doi.org/10.1177/0022427893030003002
69.
SnookB.CullenR. M.MokrosA.HarbortS. (2005). Serial murderers’ spatial decisions: Factors that influence crime location choice. Journal of Investigative Psychology and Offender Profiling, 2(3), 147–164. https://doi.org/10.1002/jip.35
70.
SpehrA.HillA.HabermannN.BrikenP.BernerW. (2010). Sexual murderers with adult or child victims: Are they different?Sexual Abuse, 22(3), 290–314. https://doi.org/10.1177/1079063210374346
StoneM. H. (2001). Serial sexual homicide: Biological, psychological, and sociological aspects. Journal of Personality Disorders, 15(1), 1–18. https://doi.org/10.1521/pedi.15.1.1.18646
73.
SturupJ. (2018). Comparing serial homicides to single homicides: A study of prevalence, offender, and offence characteristics in Sweden. Journal of Investigative Psychology and Offender Profiling, 15(2), 75–89. https://doi.org/10.1002/jip.1500
74.
TrojanC.SalfatiC. G. (2010). A multidimensional analysis of criminal specialization among single-victim and serial homicide offenders. Homicide Studies, 14(2), 107–131. https://doi.org/10.1177/1088767910364936
75.
TrojanC.SalfatiG. (2016). Criminal history of homicide offenders: A multi-dimensional analysis of criminal specialization. Journal of Criminal Psychology, 6(1), 28–41. https://doi.org/10.1108/JCP-09-2015-0027
76.
VatchevaK.LeeM.McCormickJ.RahbarM. (2015). The effect of ignoring statistical interactions in regression analyses conducted in epidemiologic studies: An example with survival analysis using Cox proportional hazards regression model. Epidemiology: Open Access, 6(1). https://doi.org/10.4172/2161-1165.1000216
YaksicE. (2015). Addressing the challenges and limitations of utilizing data to study serial homicide. Crime Psychology Review, 1(1), 108–134. https://doi.org/10.1080/23744006.2016.1168597
79.
YaksicE. (2019). Moving past sporadic eruptions, discursive killing, and running amok: Recognizing the convergence of the serial and spree killer. Journal of Criminal Psychology, 9(3), 138–146. https://doi.org/10.1108/JCP-03-2019-000
80.
YaksicE.SimkinM. V.RoychowdhuryV. P. (2021). Statistical study of time intervals between murders for serial killers. Journal of Criminal Justice, 73, 101751. https://doi.org/10.1016/j.jcrimjus.2020.101751
