Homicide-suicide - an event hard to prevent and separate from homicide or suicide

Suicide preceded by homicide is a rare but tragic event that often shocks the whole community. Annual rates show considerable variation, though not as great as the incidence of homicides. Within the industrialized nations, Finland's prevalence rates for homicide-suicide have been mid-range. The National Suicide Prevention Project recorded and carefully analysed all suicides committed in Finland during a 12-month period. In this material of almost 1400 suicides, 10 verified homicide-suicide cases were found. The perpetrator was male in all but one case, and all the victims were family, 9/10 being spouses and/or children. The most typical homicide-suicide seemed to be a man shooting a family member during a separation process. No perpetrator was found suffering from a psychotic disorder but three had major depression. The homicide-suicides were compared with the suicides and statistically significant differences emerged in two variables: shooting was more often the method used in the homicide-suicide cases, which, furthermore, were more likely to involve a divorce or recent rupture in another long-term intimate relationship. Sharing few common variables with either homicide or suicide, homicide-suicide appears to be a distinct phenomenon whose prevention would seem to be extremely difficult on the individual level. Since shooting is the most common method of homicide-suicide, firearm licenses should be more restricted.     

Homicide-suicide (dyadic death), homicide, and firearms use in England and Wales

Homicide-suicide forms a distinct form of homicide. An analysis of cases in the Yorkshire and Humberside region of England between 1991 and 2005 revealed 37 episodes with 42 victims. Previous studies have shown a high rate of use of firearms. Over the last 2 decades firearms legislation has become more restrictive. In this study all assailants were male, mean age 46.8 years. The commonest method of homicide was strangulation (36%) with 16% killed by firearms. This is a reduction compared with a previous study in the same region. All killers who shot their victims killed themselves with firearms. There were no multiple killings with firearms in this study and no stranger killings. Hanging was the commonest method of suicide. During the same period the use of firearms as a method of homicide increased in England and Wales with handguns, the most common weapon. Nationally, suicide after homicide has remained at a similar rate over the half century and is an uncommon phenomenon. Firearms use remains low in both homicide and homicide-suicide episodes in England, and further analysis is required to determine changes in patterns of killing.     

Re-evaluating the “good old days”: A study of dade county homicides, 1917–1982

Most citizens mistakenly believe that violence in the 1980’s is greater than it has ever been and yearn for the “good o1′ days” when society was peaceful and less violent. This study examines historical trends in the level of violent death (homicide, suicide and accident) in Dade County from 1917 to 1982 and compares those trends with other counties in Florida and the U.S. as a whole. The study utilized data from death certificates and from accounts of homicides in the Miami Herald. Results indicate that the two peak periods of violence were 1925–6 and 1980. However, the level of violence was five times higher (for homicides, suicides and accidents combined) in 1925–6 than in 1980. The homicide and accident peaks in 1925–6 were not limited to Dade County, as all counties in South Florida (and other Florida counties to a lessor extent) experienced the same peak in 1925–6. Though the level of homicide was higher in 1925–6, there was no difference in pattern of homicides for the 1925–6 and 1980 periods. It appears that all types of homicides were greater during the 1925–6 period. The explanation for the inordinate level of violent death in 1925–6 includes a focus on the stress created by the land boom, the “bust”, and the hurricane. The 1980 peak in homicides is partially accounted for by the Mariel boatlift, the riot of May, 1980, and the general crisis atmosphere brought on by these events and the rapidly increasing overall crime rate.     

Gender differences in lethal violence: Historical trends in the relationship between homicide and suicide rates, 1960–2000

This study examines historical trends in the relationship between homicide and suicide rates and considers the extent to which gender differences exist in that relationship. From the perspective of the integrated homicide-suicide theory, gender differences in the homicidesuicide relationship stem from differences in the manner in which males and females attribute blame and responsibility for negative life events. Consistent with expectations, the data indicate that females engage in less homicide but in more suicide than males. Seemingly unrelated regression techniques were used to further examine gender differences in the relationship between homicide and suicide rates by analyzing U.S. data for 1960 through 2000. The results indicate more gender similarities than differences in that temporal trends in the production and direction of lethal violence for both males and females tend to be associated with similar social and economic factors.     

State background checks and firearms homicides

This study examined the relationship between state firearms homicides and background checks for firearms purchases. Controlling for economic and social conditions, the estimated number of firearms in circulation, offenders under community supervision, and violent crime it was found that states with less stringent background checks on firearms purchases were significantly associated with firearms homicides. The large number of firearms circulating within the United States makes it likely that a motivated—but ineligible—person could obtain a firearm over the long-term in the secondary firearms market. Effective state background checks, however, may temporarily frustrate an unauthorized person from obtaining a firearm that, in turn, may contribute to lower firearms homicide rates. Implications for further research are examined.     

A Comparison of Ideologically-Motivated Homicides from the New Extremist Crime Database and Homicides from the Supplementary Homicide Reports Using Multiple Imputation by Chained Equations to Handle Missing Values

This study took advantage of the new open-source Extremist Crime Database (ECDB) to overcome obstacles to studying domestic far-right terrorism from a criminological perspective. In the past, exclusive definitions and inclusion criteria have limited available data on violent crimes committed by domestic far-right terrorists, and official data on violent crimes fail to capture offenders’ links to domestic far-right terrorism and ideological motivation (e.g., anti-government, anti-abortion, anti-religion). Therefore, little is known about the nature of far-right terrorist violence and how such violence is similar to and different from routine or more common forms of violence. Focusing on homicides, this study addressed why and how open-source terrorism data and official crime data can be comparatively analyzed. In doing so, we also demonstrate the utility of synthesizing terrorism and official crime data sources. Data on 108 far-right terrorist homicides were taken from the ECDB. Data on 540 common homicides (five comparison homicides for each far-right terrorist homicide) were randomly sampled from the 2000 Supplementary Homicide Reports. Using multiple imputation by chained equations and logistic regression, we imputed missing values and estimated models to compare the two homicide types on 12 different victim, offender, and event characteristics. Relative to common homicides, we found that far-right terrorist homicides were significantly more likely to have white offenders, multiple victims, multiple offenders, and to occur between strangers, and they were significantly less likely to have white victims, to be carried out with a firearm, and to occur in cities with more than 100,000 residents.     

Homicide Followed by Suicide in Finland: Trend and Social Locus

In the early 1960s, 15% of Finnish homicide offenders committed suicide after the crime. In 1998–2000, this ratio was 6%. The downward trend was due to the increase in non-suicidal homicide, as well as to a substantial decrease in the general homicide-suicide rate. Over the time span, the rate of suicidal homicide offenders per 100,000 population was halved. The decrease took place in the two most significant homicide-suicide types (that is, those of intimate-partner homicides and parent-child killings) and, within these crime types, in crimes committed by men. The present article describes the prevalence and trend of homicide-suicide in Finland, and examines the socio-economic correlates of this phenomenon. The findings indicate that the percentage and the rate of homicide-suicide have been consistently highest among middle classes and lowest among the unemployed and working classes. Victim-offender relationship, stressful life events, and alcohol consumption are discussed as explanations for this stable social difference.     

Homicide–Suicide in Cuyahoga County,Ohio, 1991–2016

Research on homicides followed by suicides has relied heavily on small samples and relatively short time spans of data. This study helps to fill this gap by examining 26 years of homicide–suicide data from Cuyahoga County, Ohio, between 1991 and 2016. The main data source for the study is medical examiner files. Analyses of the data indicate the rate of homicide–suicide in Cuyahoga County is consistent with other studies but fluctuates considerably across years studied. The majority of victims are female while perpetrators are overwhelmingly male. Black people are overrepresented as victims and offenders. Use of drugs and/or alcohol leading up to the incident is common among perpetrators. Both the homicides and suicides were overwhelming committed with firearms. When comparing our results to the typology of murder–suicides developed by Marzuk, Tardiff, and Hirsch (JAMA 1992;267:3179), we find amorous jealousy is a significant motivating factor in a many cases, including those involving nonintimate partners. Our findings underscore the importance of widespread use of lethality assessment instruments.     

Homicide–Suicide in China: an Exploratory Study of Characteristics and Types

This study explores 63 homicide–suicide cases that include two or more homicide victims, in the People’s Republic of China. This is the first study to examine homicide–suicide in the Chinese context, following calls to develop a research strategy outside of the USA and Europe. Data are derived from a content analysis of Chinese news sources from 2000 to 2014. Findings show homicide–suicide offenders are likely to be married males living in rural cities who kill their intimate partners and/or children inside a residence using knives. Intimate partner conflict and extramarital affairs are precipitating factors in almost half of the incidents. Patterns of homicide–suicide in China are comparable to those in high-income countries, except that firearms are not the primary means in China and there is no evidence of “mercy killing” among older persons, as described in western homicide–suicide studies. Findings are related to the social and economic structure of Chinese society. Clinical and policy implications include the need for greater transparency and a nationwide homicide and suicide tracking system in China, stricter domestic violence laws, postmortem studies of the brains of homicide–suicide offenders, and psychological autopsies on homicide–suicide perpetrators.     

HOMICIDE FOLLOWED BY SUICIDE: AN ANALYSIS OF CHICAGO DATA

Homicide followed by suicide has been a neglected area in criminological theory and research. The work that exists is marked by a series of methodological limitations, such as small samples and lack of systematic multivariate analysis. This study tests the thesis that the closer the ties between the offender and victim in a homicide, the greater the ensuing guilt and the greater the likelihood of suicide. Data on 16,245 homicides in Chicago are analyzed. A multivariate logistic regression analysis largely confirms the hypothesis. Controlling for sociodemographic variables, killing an ex-spouse/lover increased the risk of suicide the most, 12.68 times. The odds of suicide are increased 10.28 times for killing a child, 8.00 times for killing a spouse, 6.11 times for killing a girlfriend or boyfriend, and 1.88 times for killing a friend. The act of homicide-suicide is conceptualized as stemming from a frustrated intimate relationship and a blend of self- and other-blame in one's attribution style.     

Can Situational and Structural Factors Differentiate Between Intimate Partner and “Other” Homicide?

A large body of research has identified strong and consistent correlates of aggregated intimate homicide incidents; however, the bulk of these studies focuses on the influence of either case or neighborhood characteristics on homicide types, but not both. This study examines data collected from 739 homicides in two distinct metropolitan cities to determine which factors differentiate intimate and non-intimate homicide. Findings reveal that intimate partner homicides (IPH) are more likely to involve females both as victims and offenders when compared to non-IPH incidents. In addition, IPH homicides are more likely to be committed with weapons than non-IPH, but this finding only appears in Indianapolis homicides. Indeed, one of the stark contrasts between Indianapolis and Newark was the much greater prevalence of firearms involved in IPH homicides in Indianapolis. This suggests the need for future research that sorts out patterns of household gun possession, factors influencing community levels of household gun possession, and the use of legally- or illegally-possessed firearms in IPH homicide.     

Firearms and adult, domestic homicides. The role of alcohol and the victim

An epidemiological study was conducted to characterize adult, domestic homicides committed with firearms and to determine the role of alcohol intoxication in the likelihood of becoming a homicide victim. Data on 129 homicides in Ohio occurring between 1982 and 1985 were collected from police departments of major cities, the Ohio Department of Rehabilitation and Corrections, and county medical examiners. Forty-eight offenders were interviewed. Temporal and geographical patterns are discussed, as well as offender-victim relationships and the characteristics of the firearms used. High levels of blood alcohol in the victims suggest that alcohol is a risk factor for becoming a homicide victim, although data on alcohol consumption patterns in the population are necessary to advance this association.     

The many faces of violence: A theoretical and statistical comparison of homicides,suicides, and motor vehicle fatalities

Homicide as a form of lethal violence has occupied a dominant place in criminological research over several decades. Researchers have explained the causes of homicide from various theoretical frameworks. Two other forms of lethal violence, namely suicide and motor vehicle fatalities, have been largely ignored. This study explores the trends in three forms of violent deaths namely, homicide, suicide, and motor vehicle fatalities in Phoenix, Arizona for the period 1950–1988. These three forms of violence have been tested from two dominant theoretical perspectives, namely social disorganization and social conflict. The findings from our study suggest that the social conditions which influence homicide are the same as those that influence other forms of lethal violence.     

Comparing Homicide‐Suicides in the United States and Sweden

Research on homicides followed by suicides has largely relied on very localized samples and relatively short time spans of data. As a result, little is known about the extent to which patterns within cases of homicide‐suicides are geographically specific. The current study seeks to help fill this gap by comparing twenty years of homicide‐suicide data for Sweden and a large U.S. county. Although some of the underlying patterns in the two countries are similar (e.g., decreasing rates), a number of important differences emerge, particularly with respect to incidence, weapons used, perpetrator age, and relationship of the perpetrator to the victim.     

‘Till Death Us Do Part’: spousal homicide in early modern Russia

The history of domestic violence, let alone domestic homicide, in Russia has yet to be written. This article focuses on the legal attitudes to domestic and especially marital homicide in early modern Russia and explores types of and methods used in spousal killings. The research is based on court records in addition to laws, legal documents and other sources. Its preliminary conclusions include assumptions about scale of domestic violence, gender of perpetrators and victims, main trends in domestic homicide and their connections with available explanatory frameworks. The study reveals that Russian households were violent places accounting for different types of assaults and homicides, but in all these acts women died more frequently than men. Marital homicide occurred in all social groups in Russia. Motives and methods for marital homicides were consistent with gendered theories of power relations. Penal policies also reveal harsher treatment of women than men, pointing to the gendered definitions of power disciplining methods.     

Facilitating Violence: A Comparison of Gang-Motivated, Gang-Affiliated, and Nongang Youth Homicides

It is well established that gangs facilitate violent offending by members,but the mechanisms by which that facilitation occurs remain unclear. Gangsmay promote violence indirectly by facilitating members' access to riskysituations such as drug markets or directly through gang functions such asturf defense. We explore alternative modes of facilitation in a comparisonof gang-affiliated homicides (which involve gang members but do not resultfrom gang activity), gang-motivated homicides (which result from gangactivity), and nongang youth homicides in St. Louis. We find importantdifferences as well as similarities in the time trends and eventcharacteristic of the two types of gang homicide; in key respects thegang-affiliated homicides more closely resemble the nongang events. Thegang-motivated events exhibit a somewhat distinctive spatial patterning,as might be expected from their connection to turf conflicts. However, allthree homicide types are highly concentrated in racially isolated,disadvantaged neighborhoods, which remain the fundamental socialfacilitators of both gang and nongang violence.     

Fatal head injuries from firearms. An autopsy study of 270 cases

Autopsy findings in 270 fatal head injuries from firearms are reported, including 243 suicides and 27 homicides. The most frequent weapon used for both groups were shot guns which are easily available in Norway. For suicides the most favored sites were right tempoparietal, frontal, and mouth. Twenty-six percent of the victims from homicides had multiple wounds in their head. Suicide by firearms showed marked male predominance, whereas the sex ratio for homicide was rather equal between the two sexes.     

Female homicide-suicide perpetrators: a controlled study

The record files of the Dade County Medical Examiner Department were reviewed and 133 homicide-suicides were identified. Of these, ten (or 7.5%) were female perpetrated. The chart data of these 10 female homicide-suicide perpetrators, chart data of 50 female homicide-suicide victims, and 50 female individual suicides systematically selected as controls were tabulated using a standardized instrument. The results were analyzed for differences using simple statistical methods. The comparisons revealed that female homicide-suicide perpetrators were more likely than female homicide-suicide victims to live in mobile homes, kill their lover or ex-lover, have their crime accidentally discovered, leave a suicide note, kill on a weekend, and be depressed, but are less likely than female homicide-suicide victims to live with a spouse. Additionally, female homicide-suicide perpetrators were more likely than individual female suicides to live in mobile homes but less likely to live alone and to be depressed.     

DIFFERENCES BETWEEN GANG AND NONGANG HOMICIDES*

Does gang-related homicide direr sufficiently from nongang homicide to warrant specialized law enforcement response? Both cross-tabular and discriminant analyses of data from over 700 homicide investigation files reveal substantial differences in ethnicity, age, number of participants, and relationship between participants. Gang homicides are also more likely to involve public areas, automobiles, firearms, and, in one jurisdiction, associated offenses and injury to other victims. Gang incidents present unique problems to investigators, who may well benefit from specialized skills of experienced gang experts.