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PubMed1995

The epidemiology of homicide-suicide (dyadic death).

The national and international rates of homicide and homicide-suicide (dyadic death) have been studied by examination of the available literature. The rates of homicide-suicide episodes between different countries showed considerable variation, though not as great as overall homicide rates. Despite the variation the features of the episodes were similar, with a man usually killing his spouse and/or children with a firearm. The commonest motive for killing is jealousy and/or revenge, often as the result of a breakdown in the spousal relationship.

Female↗
PubMed2005

Victims of homicidal deaths - an analysis of variables.

In the 11-year period from January 1993 to December 2003, 61 homicide victims were autopsied in the Department of Forensic Medicine, Kasturba Medical College, Manipal. Documents concerning the age and sex of the victims, time of assault, method used for assault, location of fatal injuries and number of offenders involved were analyzed. Of the 61 victims of homicide, majority were males and most of them were between 21 and 30 years. Most of the crimes occurred during the evening and night hours (52.4%) and winter was the commonest season for homicide. There were significantly more homicides over the weekends (Saturday and Sunday). 37.7% of the victims exhibited evidence of injuries due to sharp force trauma. Head injuries were more common. Multiple offenders were involved in 47.5% of cases whereas single offender was involved in 40.9%.

Adolescent↗
PubMed2006

Survey of medico-legal investigation of homicides in the city of Turku, Finland.

Finland has one of the highest homicide rates in western Europe but the clear-up rate is also exceptionally high. To create a detailed analysis of homicides (n=161) in a region of western Finland during the 20-year period from 1983 to 2002 all available information was collected retrospectively from multiple sources including medico-legal reports, reports of police investigations, and court proceedings. Among the data collected and analysed were location, time, circumstances, and motives of homicides, forensic pathologists' role at the scene-of-the-crime and in court, autopsy findings, demographics and substance abuse of both victims and offenders, criminal background, forensic psychiatric examinations, and the verdicts of the offenders. A typical homicide was committed without premeditation during the weekend by a drunken male with a knife at hand and with a history of violent crimes. The perpetrator was later found guilty of manslaughter and received a prison sentence. Some noted shortcomings both in the police and the medico-legal investigation procedures are discussed, as well as the forensic pathologist's role in the judicial process in Finland.

Adolescent↗
PubMed2004

Victimiologic study of female homicide.

Female homicide is one of the leading causes of injury deaths in women. In most of such killings, spouses are usually involved because of one or the other reason. The purpose of the study is to identify the risk factors and nature of violence from victimologic point of view in female homicide. Information was obtained by interviewing the accompanying persons, postmortem examination and perusal of hospital records. There were 39 female victims of total 162 homicide. The peak age of the female homicide victim was 3rd decade. The victims were most frequently killed by their spouses. Argument (33.3%) and dowry (30.7%) were the most frequent reasons behind the crime. Majority of victims (84.6%) were killed in their home. Fatal wound is most frequently seen in head and defense wound is present only in nine cases. Considering sociological aspect of victim, 82% of the victims were from Hindu religion, majorities of them were married, illiterate, and drawn from low-socioeconomic status and rural community.

Adolescent↗
PubMed1997

Violence and homicidal behaviors in psychiatric disorders.

Our review evaluating the relationship between violent/homicidal behaviors and mental illness/psychiatric disorders used many different data including that assessing the prevalence of violent/homicidal behaviors in former psychiatric inpatients (just before hospitalization, during hospitalization, and after discharge) as outpatients and in community samples as well as evaluating the prevalence rate of psychiatric disorders in people who actually engaged in violent/homicidal disorders (jail detainees, prison inmates, and community samples). Irrespective of which line of investigation, there was convincing evidence that violent/ homicidal behavior was associated significantly with mental illness. Although earlier investigations failed to control for important variables, such as age and sociodemographics, most studies reviewed in this article did control for these items, further underlining the association of violence and mental illness. The question of whether specific psychiatric diagnostic categories are associated with violent/homicidal behavior is less definite across the various studies reviewed. The presence of substance abuse and dependence and alcohol abuse and dependence as well as antisocial personality disorder are particularly associated with an increased risk of violent/homicidal behaviors. The risk for these latter behaviors in schizophrenia, mood disorders, and anxiety disorders may appear somewhat greater than that for a general population but are not of the same magnitude of that for substance abuse or antisocial personality disorder. Interestingly, our outpatient study found that homicidal behaviors were not associated with any specific psychiatric diagnosis. Although understanding whether specific psychiatric diagnostic categories are more prone to violent behaviors may be of importance, most studies have been shortsighted regarding this evaluation. All the studies presented in this article except the ECA project, presented diagnostic data where either the presence of one psychiatric disorder did not preclude the diagnosis of another or assigned subjects/patients into the severest disorder of a predetermined hierarchy of diagnoses or only selected their principal/primary diagnosis. Thus, the effect of having a solitary psychiatric disorder (only one disorder present) as well as the effect of comorbidity per se on the relationship of psychiatric disorders and violent/homicidal behaviors were unexplored. Only the ECA study by Swanson and colleagues reported on the effect of comorbidity. As reviewed earlier in the article, Swanson et al found that comorbidity of psychiatric diagnostic categories further increased the risk of violent/ homicidal behaviors. In most cases, it was many more times than simply adding the rates of either diagnosis alone. Because more than 54% of respondents of the National Comorbidity Survey study who had one DSM-III-R diagnosis also had at least a second Axis I diagnosis, the association of violent/homicidal behaviors to mental illness may even be stronger than originally believed. Within the relationship of violent/homicidal behaviors and mental illness, this article suggests a number of particular risk factors. As just reviewed, substance/alcohol abuse and antisocial personality disorder as well as the presence of comorbid psychiatric disorders are significant risk factors. Which particular comorbid illness increases the risk still needs further elaboration. Studies must continue to try to define and understand the relationship of violent/homicidal behaviors in mental illness. Although mental disorders per se are significantly associated with violent/homicidal behaviors, it is reasonable to believe that targeting certain subgroups of patients should be helpful. Probably the presence of psychotic symptoms is a significant risk factor in violent/ homicidal behaviors in the mentally ill. Only one of the studies reviewed in this article evaluated this issue. (ABSTRACT TRUNCATED)

Adult↗
PubMed2001

Unusual homicide by air gun with pellet embolisation.

A homicidal case by an air gun involving a 73-year-old woman who was found dead in her home is described. At autopsy, two gunshot wounds were observed on the left anterior chest and the right back. There was neither exit wound nor powder burns. The fatal pellet, 0.9 g and 5.5mm diameter, penetrated the left anterior chest and the heart to cause cardiac tamponade (200 ml) before lodging in the left subclavian artery. Death was due to cardiac tamponade. This case has exhibited two rare phenomena: homicide by an air gun and pellet embolisation. This is the first homicide case by use of air gun in Japan and demonstrates that although it may be rare, air guns can be used as potential homicidal weapons. This experience will alert our society and others on the potential hazards of air guns we have tended to regard as toys.

Aged↗
PubMed2003

Homicidal and suicidal ligature strangulation--a comparison of the post-mortem findings.

Suicides by ligature strangulation are rare events. In Berlin (3.5 million inhabitants; ca. 500 suicides per year) approximately one case per year occurs. Here, we present the main findings of 19 cases investigated between 1978 and 1998, compared to 47 cases of homicidal ligature strangulation. Two of the 19 suicidal victims had single fractures of the upper thyroid horns and one victim a fracture of a lower thyroid horn; other types of laryngohyoid injuries were not observed. In the homicidal series, the laryngohyoid structures were unaffected in 26 cases (12 of these victims were children or adolescents), single thyroid horn fractures were present in three cases and more significant injuries in 18 cases. Macroscopic bleedings of the laryngeal muscles were found in 12 victims of the homicidal group and in none of the suicidal. Bleedings in the neck muscles seldom occurred in suicides. According to these findings, the laryngohyoid injuries can be helpful in the differentiation of suicide from homicide, if more than a single thyroid horn fracture or a laryngeal soft tissue trauma is present.

Adolescent↗
PubMed1999

Assessment of methods of homicides in a Brazilian city: a preliminary study.

Homicides in the city of Ribeirão Preto, state of São Paulo, Brazil, were analyzed with regard to methods (firearms or others) and gender, in a retrospective study from 1993 to 1997. There was a progressive increase in the number of homicides, mainly after 1995, with an increment of 86.6% in 1997 in comparison to 1993. The incidence of homicides was higher among males, with firearms being the most common method in this group since 1993. In addition, a 10% increase in this method was observed since 1995, in association with a proportional reduction in the use of other methods. The incidence of homicides among females remained stable until 1996 and increased by 51.3% in 1997. Simultaneously, firearms have become the most common method among female victims (71.4%), pattern similar to that observed among males. Attention is drawn to the social and economic conditions and their relationships with drug traffic in the city.

Adolescent↗
PubMed2000

Double suicide and homicide-suicide in Switzerland.

Double suicide and homicide-suicide are infrequent and are different in psychopathology from that of a single suicide. However, precipitating factors for double suicide and homicide-suicide are similar to these found in single suicide. Depression, borderline disturbances, and narcissistic neuroses in combination with stressors such as physical illness, isolation, and social losses can lead to homicide-suicide. Epidemiological studies indicate that double suicide and homicide-suicide are influenced by ethnicity and cultural and social background. This study explores the situation in Switzerland between 1928-48 and 1971-1990.

Adult↗
PubMed1987

Community responses following suicide, homicide, and other deaths: the perspective of potential comforters.

To determine whether actual responses of potential comforters in the community differ according to cause of death, 83 college students participated in a structured, individual interview. They were asked demographic questions about themselves, the bereaved, and the deceased, and then about various aspects of how they, and others in the community, responded to the death. Students were grouped by their reports of the cause of death (suicide, homicide, accident, natural anticipated death, or natural unanticipated death). When the death was by suicide or homicide, others were perceived as relatively less supportive of the bereaved person. When the death was by suicide, respondents themselves tended more to blame the bereaved person. When the death was by homicide, the bereaved person was perceived as reacting relatively worse. Potential comforters were relatively more shocked when the death was by homicide or accident.

Accidents↗
PubMed1999

The enduring effects of cohort characteristics on age-specific homicide rates, 1960-1995.

In the past decade, young people in the United States have been two to three times more likely than in the two previous decades to commit homicides, while those 25 years and older have been less likely to commit homicides than were members of their age groups in the earlier time period. These changes in youth homicide rates are associated with two cohort characteristics that are theoretically linked to criminality: relative size of cohorts and the percentage of cohort member born to unwed mothers. These effects persist throughout the life span, are independent of age and historical period, and can explain fluctuations in homicide arrest rates before the recent upturn.

Adolescent↗
PubMed1996

So long as they both shall live: marital dissolution and the decline of domestic homicide in France, 1852-1909.

This article suggests that the growth of European states, the decline of familism, and the rise of individualism generated the institutionalization of judicial separation and divorce. Time-series analyses of France (1852-1908) reveal a persistent negative association between separation/divorce and domestic homicide, especially among males. Neither indicators of economic change nor trends in the wider pattern of violent crime account for the relationship. Although marital dissolution is a negative correlate of premeditated domestic homicide, the rate of separation/divorce is directly associated with spontaneous domestic homicide, for both females and males and may indicate that abandoned spouses can become homicidal.

Divorce↗
PubMed1977

An epidemiologic study of homicides in Allegheny County, Pennsylvania.

Extensive demographic data concerning homicide victims and perpetrators in Allegheny County, 1966-1974, were obtained retrospectively from the records of the County Coroner's Office and Police Department. Analysis revealed that the demographic characteristics describing perpetrators and victims were essentially identical. Rates of homicide peaked in the young adult years of life. The race ratio (B/W) among victims was 18.7 for males and 6.7 for females, while sex ratio (M/F) was 5.4 for blacks and 1.9 for whites. An inverse relationship between the rate of homicide and socioeconomic status was present among both black and white races. The majority of victims were killed by a spouse, relative, or friend (66%), usually in familiar locations, i.e., residence or place of work (60%), and usually during an alteration (68%). Shooting was the method used to perpetrate 61% of the killings, most of which were by means of a handgun. An increasing trend of homicide was noted, particularly for the type perpetrated by shooting.

Adolescent↗
PubMed1986

Homicide and race in Erie County, New York.

Medical examiner records of homicides in Erie County, New York, in 1972-1984 were analyzed, comparing homicides of whites with homicides of blacks. Black victims were younger than white victims, had more alcohol in their blood, and were less often killed with bare hands. The killer of a black victim was more likely to be female and less likely to have killed in connection with another crime. This is interpreted to mean that a higher proportion of black homicides arose from personal disputes.

Adolescent↗
PubMed1986

Drug use and interpersonal violence. Barbiturates detected in homicide victims.

To characterize patterns of barbiturate use in homicide victims, we used data from the Los Angeles City Police Department and the Medical Examiner-Coroner's Office to study 4,950 victims of criminal homicide committed in that city in 1970-1979. Barbiturates were detected in 323 (7.9 per cent) of the 4,063 victims who were tested. Detectable levels were present most often in black victims (10.4 per cent), in equal proportions of Anglos and Hispanics (6 per cent), and least often among victims in other race-ethnic groups (4.1 per cent). Among specific subgroups, barbiturate use was greatest in black female victims (15.1 per cent). The detection of barbiturates more commonly among certain subgroups and in specific types of homicidal encounters suggests that barbiturate use may be linked to specific behaviors that precede homicide.

Barbiturates↗
PubMed1988

Homicide victims in New Orleans: recent trends.

Data are presented on 694 criminal homicide victims killed in the city of New Orleans during four years; 1979, 1982, 1985, and 1986. The homicide rate for black males was 6.5 times higher than that for white males for the years studied. Over 70% of victims were killed by handguns. When victims were assigned to one of five socioeconomic strata, homicide rates for blacks exceeded those for whites by a factor of at least 2.5 times for each socioeconomic stratum. White victims were more likely than were black victims to be legally intoxicated at the time of death, but black victims were nearly four times more likely to have illicit drugs other than alcohol detected. During the time period investigated, there was a marked decrease in the number of victims with pentazocine and tripelennamine ("Ts and blues") detected and an abrupt increase in the number of victims with detectable phencyclidine and cocaine levels. Further studies are needed to investigate risk factors for homicide victimization so that effective intervention strategies can be employed.

Adolescent↗
PubMed1991

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.

Adult↗
PubMed1997

Homicide trends in the State of Victoria, Australia.

Limited data about homicide in Australia have been published. Data on homicide occurring in the state of Victoria, Australia, are presented. Since 1945 there has been a doubling of the population and an increase in the rate of homicide. The most common method of killing was shooting, and most homicide victims were known to their assailants. Male assailants far outnumber female assailants. Men are the most frequent victims, but female victims far outnumber female assailants. The data are compared with data on other Australian states and published data from other countries.

Australia↗