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A 28-year (1963-90) study of homicide in Marion County, Oregon
P J Batten1, L J Hicks, D W Penn
1Office of the Medical Examiner for Marion County, Oregon.
Abstract:
We describe 240 consecutive homicidal deaths that occurred in Marion County, Oregon, over a 28-year period (1963-90). An epidemiological assessment of the homicides yielded the following information: More than 91% of these deaths were primary homicides. In primary homicide, 63% of the victims and 88% of the offenders were male. In secondary homicide, 76% of the victims and all of the offenders were male. A high percentage of victims (83%) and offenders (84%) in primary homicide were Caucasian, as were 100% of victims and offenders in secondary homicide. About 12% of victims and 10% of offenders in primary homicide were Hispanic. Fifty-nine percent of primary homicides were intrasexual, as compared to 87% of secondary homicides. An intraracial pattern was found in 90% of primary homicides and in 100% of secondary homicides. The most frequent means of death in both primary and secondary homicides were firearms, physical beating, and stabbing. Strangers committed 80% of secondary homicides. This was in marked contrast to the victim-offender relationship found in primary homicides, where strangers were responsible for approximately 16% of the total, acquaintances for approximately 36%, and family members for approximately 48%. The overall clearance rate (i.e., the identification and charging of a suspect for the death) was 88%.
Insights
This study analyzed 240 homicides in Oregon from 1963-1990, finding most were primary homicides. Victim and offender demographics, including race and sex, varied between primary and secondary homicide cases.
Area of Science:
- Forensic Epidemiology
- Criminology
- Public Health
Background:
- Homicide remains a significant public health concern.
- Understanding demographic patterns in homicides is crucial for prevention strategies.
Purpose of the Study:
- To conduct an epidemiological assessment of homicidal deaths in Marion County, Oregon.
- To analyze victim and offender characteristics, victim-offender relationships, and homicide circumstances over a 28-year period.
Main Methods:
- Retrospective epidemiological analysis of 240 consecutive homicidal deaths.
- Data collection included victim and offender demographics, race, ethnicity, victim-offender relationship, and means of death.
Main Results:
- Over 91% of homicides were primary; most victims and offenders were Caucasian males.
- Firearms, stabbing, and physical beating were common means of death.
- Primary homicides frequently involved family or acquaintances, while secondary homicides often involved strangers.
Conclusions:
- Homicide patterns exhibit distinct demographic and relational characteristics between primary and secondary cases.
- The high clearance rate suggests effective law enforcement investigation in this jurisdiction.
- Findings provide valuable insights for targeted violence prevention and intervention efforts.