Santtila, Pekka and Pakkanen, Tom and Zappala, Angelo and Bosco, Dario and Valkama, Maria and Mokros, Andreas (2008) Behavioural crime linking in serial homicide. PSYCHOLOGY CRIME & LAW, 14 (3). pp. 245-265. ISSN 1068-316X,
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The present study aimed to identify dimensions of variation in serial homicide and to use these dimensions to behaviourally link offences committed by the same offender with each other. The sample consisted of 116 Italian homicides committed by 23 individual offenders. Each offender had committed at least two homicides. As some offenders had worked together and some murders involved more than one victim, there were 155 unique pairings of offenders and victims. Dichotomous variables reflecting crime features and victim characteristics were coded for each case. Using Mokken scaling, a nonparametric alternative to factor analysis, seven dimensions of variation were identified. Five of the dimensions described variations in the motivation for the killings. Three of these were concerned with aspects of instrumental motivation whereas two of the motivational scales described variations in sexual motivation. The two remaining dimensions dealt with the level of planning evident in the crime scene behaviour of the offender. Two dimensions were identified: one consisting of behaviours suggesting a higher level of control and another describing impulsiveness. Using discriminant function analysis with the dimensions as independent variables and the series an offence belonged to as dependent variable, 62.9% of the cases could be correctly assigned to the right series (chance expectation was 6.2%). The implications of the results for serial homicide investigations are discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MURDER; TYPOLOGY; MODEL; crime linking; serial homicide; offender profiling; behavioural consistency |
| Subjects: | 100 Philosophy & psychology > 150 Psychology |
| Divisions: | Human Sciences > Institut für Psychologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Nov 2020 10:32 |
| Last Modified: | 23 Nov 2020 10:32 |
| URI: | https://pred.uni-regensburg.de/id/eprint/31766 |
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