147例凶杀案的法医学分析

通过对上海地区中147例凶杀案尸检的分析,从案件情况、现场勘察及尸体检验等方面进行归纳,总结了此类案件的共同特点,以期为凶杀命案的检验、侦破提供参考。     

Concealed homicidal strangulation by burning.

Compression of the neck, either with the hands or by a ligature, is not an uncommon method of homicide. Burning of the body to try to conceal the homicide may complicate the situation by making it difficult to interpret the findings. We hereby report two cases of homicidal ligature strangulation with extensive burning of the bodies. In both cases, external findings included the presence of a soft piece of fabric around the neck that, when removed, disclosed a portion of pale, unburned skin that vividly contrasted with surrounding areas. Osteocartilaginous lesions were present in only one case. Carboxyhemoglobin levels in both cases were very low, and the histopathologic examination of distal airways for soot particles was negative.     

A case of homicidal intoxication by chloropicrin

An 18-year-old girl and her boyfriend were sprayed with toxic chemicals from the left front door of their parked car. The girl died of intoxication about 4 h later. The main findings of postmortem examination were spotty discolorations on her skin and severe pulmonary edema. The unknown chemical was identified as chloropicrin by gas-liquid chromatography and gas chromatography-mass spectrometry of her lung and on samples from the car's console box, cassette tape case, and floor mat, all of which were wet with chemicals. The content of chloropicrin in her lung was calculated at 1.6 ng/g of wet weight.     

Risk of homicidal behavior among discharged forensic psychiatric patients

We studied the risk of homicidal behavior among 281 released male forensic psychiatric patients during the 14-year period 1978–1991. Released patients were about 300 times more likely to commit a homicide than the general male population during the first year outside hospital, and the corresponding risk was 53-fold during a mean follow-up period of 7.8 years. The odds ratio for committing a homicide among all Finnish schizophrenics during the 12-year period 1980–1991 was 9.7, which indicates that previous criminality associated with schizophrenia also increases the risk of homicidal behavior remarkably when compared with schizophrenia per se. We believe that this kind of epidemiological approach is a useful method of identifying and classifying factors associated with very high risk of homicidal behavior and preventing homicidal behavior among high-risk populations.     

Risk of homicidal behaviour among persons convicted of homicide

We studied the risk of homicidal behaviour among persons convicted of homicide using an epidemiological method. The results showed that male homicide offenders are at least 10 times more likely to commit a homicide when compared with general male population. This odds ratio was about 150-fold among offenders who had committed at least four previous aggravated violent crimes as well as homicide.     

Personality traits in suicidal and homicidal subjects with schizophrenia

Paranoid schizophrenia is characterised by an increased risk of suicide and homicide. Little is known about the influence of personality dimensions as determinants for suicidal and homicidal behaviour within this condition. We assessed the differences among suicidal, homicidal and non-aggressive adult male in-patients with ICD-10 paranoid schizophrenia. The clinical assessments included structured psychiatric interviews and reports on harmful alcohol use and suicide attempts. The personality dimensions were assessed with the Big Five Inventory-10. The study recruited 264 patients divided into three groups: suicide attempters (N = 62), homicide group (N = 70), and a comparative control group (N = 132). To examine how the clinical subgroups differed from the comparative sample in the studied variables, a multinomial regression was performed. Each subgroup was considered a nominal outcome variable and the log odds of the outcomes were modelled as a linear combination of the predictor variables. Neuroticism or emotional instability was the only personality dimension that was different among the study subgroups: a lower level of neuroticism was found in the homicide group. Other risk factors such as age, education, relationship status and history of self-aggressive behaviour could potentially distinguish these subgroups of paranoid schizophrenia patients.     

Language disorders in disruptive behavior disordered homicidal youth.

Eight homicidal youths were assessed for language disorders and psychiatric diagnoses using a battery of standardized language tests and the Diagnostic Interview for Children and Adolescents. Both language disorders and Diagnostic and Statistical Manual III-R psychiatric diagnoses were present in all subjects.     

精神病人的凶杀行为研究(附116例分析)

目的　探讨凶杀行为的特征及相关因素。　方法　采用回顾性研究方法 ,对 116例凶杀案例资料进行统计分析。　结果　凶杀行为与患者的性别、年龄、社会经济状况、疾病诊断、精神症状等因素关系密切 ,案发前多有先兆。　结论　加强精神卫生知识的宣传教育和精神卫生立法是预防精神病人肇事、肇祸的有效途径。     

Sociodemographic and diagnostic characteristics of homicidal and nonhomicidal sexual offenders

The aims of this study were to compare the prevalence of psychiatric disorders and "psychopathy" in homicidal and nonhomicidal sexual offenders and to investigate the specificity of previous studies on psychiatric morbidity of a sample of sexual murderers. Information from court reports of 166 homicidal and 56 nonhomicidal sex offenders was evaluated using standardized instruments (SCID-II, PCL-R) and classification systems (DSM-IV). Sexual murderers were diagnosed more often with a personality disorder (80.1% vs. 50%; p < 0.001), especially schizoid personality disorder (16.3% vs. 5.4%; p < 0.05), as well as with sexual sadism (36.7% vs. 8.9%; p < 0.001) and sexual dysfunctions (21.7% vs. 7.1%; p < 0.05). Additionally, they had more often used alcohol during the offense (63.2% vs. 41%; p < 0.05). The results indicate that sexual murderers have more and a greater variety of psychiatric disorders when compared to nonhomicidal sex offenders.     

合并自杀的杀人行为研究(附40例分析)

目的　探索合并自杀的杀人行为的犯罪学特征、发生机理 ,为责任能力的评定提供依据 ,并提出进一步研究方向。　方法　采用回顾性研究方法 ,3名研究人员从 1997年 1月～ 2 0 0 1年 10月的鉴定案例中挑出符合研究条件的案例 ,进行统计学分析 ,并结合国内外相关文献进行讨论。　结果　符合条件者共 40例 ,男性被鉴定人较多 (2 8名 ) ,平均年龄 33.5 5岁 ,主要年龄段 30～ 40岁 ,妄想和情绪低落等症状具有明显的作用 ,精神分裂症和无精神病在疾病诊断中占有显著地位。　结论　合并自杀的杀人行为具有一定的特征 ,应引起司法精神病学的关注 ,并展开更深入的研究。     

合并自杀的杀人行为研究（附40例分析）

探索合并自杀的杀人行为的犯罪学特征、发生机理,为责任能力的评定提供依据,并提出进一步研究方向. 方法 采用回顾性研究方法 ,3名研究人员从1997年1月～2001年10月的鉴定案例中挑出符合研究条件的案例,进行统计学分析,并结合国内外相关文献进行讨论. 结果符合条件者共40例 ,男性被鉴定人较多(28名),平均年龄33.55岁,主要年龄段30～40岁,妄想和情绪低落等症状具有明显的作用,精神分裂症和无精神病在疾病诊断中占有显著地位. 结论 合并自杀的杀人行为具有一定的特征,应引起司法精神病学的关注,并展开更深入的研究.     

精神病人的凶杀行为研究(附116例分析)

目的 探讨凶杀行为的特征及相关因素。方法 采用回顾性研究方法，对116例凶杀案例资料进行统计分析。结果 凶杀行为与患者的性别、年龄、社会经济状况、疾病诊断、精神症状等因素关系密切，案发前多有先兆。结论 加强精神卫生知识的宣传教育和精神卫生立法是预防精神病人肇事、肇祸的有效途径。     

Airway obstruction by laryngeal masses in sudden and homicidal deaths

We present two cases of autopsy detection of laryngeal masses with medico-legal implications. The first is a 56-year-old man who died suddenly of asphyxia due to upper airway obstruction caused by a large glosso-epiglottic retention cyst and glottic oedema. Hypothesis of medical liability was raised, due to delayed tracheotomy as the result of repeated failed attempts at oral intubation by various physicians. Difficult oral intubation due to the presence of a laryngeal mass in an asphyxiating subject requires rapid tracheotomy. The second case deals with a 43-year-old woman who died of asphyxia due to airway obstruction, as a result of injury of a cavernous laryngeal haemangioma after homicidal manual strangulation, with severe haemorrhagic infiltration of the surrounding soft tissues. Damage to laryngeal/hypopharyngeal masses should be considered as a possible sign of manual strangulation, as well as neck skin bruises/abrasions and laryngeal haemorrhages.     

Cardiopulmonary resuscitation-related injuries and homicidal blunt abdominal trauma in children

Defendants accused of inflicting fatal abdominal injuries to children occasionally raise the defense that the injuries were caused by cardiopulmonary resuscitation (CPR). The purpose of this study is to answer the question: Does closed chest CPR result in fatal blunt abdominal injuries that can be mistaken for homicidal assault? To that end, a retrospective study was conducted of all homicidal blunt abdominal injuries in children 10 years and younger from the Dade, Broward, and Palm Beach Medical Examiner's Offices from 1981 through 1997. These were compared to cases of children who died of natural causes during the same time period in Broward County who had CPR (control group 1) and to children who died of nonvehicular accidental blunt abdominal trauma (control group 2). Children with life-threatening head injuries were excluded. Medical examiner records, autopsy reports, documenting photographs, and clinical records were reviewed. The data analyzed included subject demographics, whether CPR was performed and by whom, and autopsy findings. Thirty-three child homicides with fatal abdominal injuries were reviewed. Twenty-four (73%) of the homicides received CPR. There was no difference in the nature and severity of injuries between the 24 children who received CPR and the 9 who did not. Three hundred and twenty-four cases of pediatric natural deaths were reviewed, all of which had CPR. No traumatic abdominal injuries were found in any of the children who died of natural causes. Only four children who died of natural causes had evidence of extraabdominal trauma related to CPR. No cases of nonvehicular accidental blunt abdominal trauma were identified during the 17-year period, although there were nonvehicular accidental fatalities due to extraabdominal injuries. The likelihood of CPR-related primary abdominal trauma in child homicides is very low.     

Differentiation between self-inflicted and homicidal stab wounds to the neck

39 autopsy cases with throat incision examined in the Bonn Institute of Legal Medicine in the years 1990 through 1998 were evaluated with respect to the query whether the morphological criteria generally established for the differentiation between homicide and suicide are also suitable for the assessment in this special localization. Integrative consideration of localization, direction of incision, hesitative resp. tentative injuries, defence injuries, concomitant injuries and capability to act allowed for a discrimination on grounds of legal medical findings in 84 per cent of the cases.     

6例杀亲案件的法医学鉴定分析

在我国,特别是多民族聚居区,人们比较重视家庭传统,喜欢家族群居,家庭成员之间暴力犯罪的情况时有发生,因此,研究杀亲案件的特点有其重要的现实意义。本文通过对6例杀亲案件有关资料进行分析,以期得出一些有用的信息,供同行们参考。案例资料本文所选案例资料来源于我辖区内1991～1997年7年间法医检验的案例。具体情况见表1。表1　6例杀亲案件相关资料一览表序号性别凶手　死者年龄凶手　死者民族职业死因凶器损伤部位死者与凶手关系杀人后概况动机检验时间1男女4342汉农民大失血匕首胸部夫妻碎尸奸情死亡1年后2男男2170蒙古牧民大失血小口径…     

Venous air embolism in homicidal blunt impact head trauma. Case reports

From 1992 through 1997, there were 41 deaths by homicidal blunt impact head trauma in Hillsborough County, Florida. Twenty-one cases were excluded from the study because of putrefaction or survival beyond the emergency department doors, leaving 20 cases for the study. One of the 15 nonputrefied victims found dead at the scene and 1 of the 5 victims pronounced dead in the emergency department had definite venous air embolism. Victim 1 was found dead, bludgeoned with a concrete block, and had open vault and comminuted basilar skull fractures. The dura forming the right sigmoid sinus at the jugular foramen was lacerated. A preautopsy chest radiograph and examination under water documented gas in the pulmonary artery and right ventricle. Victim 2 was bludgeoned with a steel stake and was pronounced dead on arrival in the emergency department. He had open comminuted vault fractures, a transverse basilar skull fracture, and lacerations of the brain. Direct examination and preautopsy chest radiography revealed air in the right side of the heart. A third victim, with basilar fractures, had a small gas bubble in the pulmonary artery not detected by the case pathologist. A fourth victim, with a basilar skull fracture, had an unusual radiographic finding that was thought to be air in the posteromedial aspect of the lower lobe of the left lung but could not be excluded as an air embolus. Optimal postmortem documentation of venous air embolism includes the demonstration of the embolus and the site of air ingress. This study demonstrates that venous air embolism occurs in some victims of homicidal bludgeoning and suggests that when significant, it is easily demonstrated in the absence of putrefactive gas formation. The presence of venous air embolism can serve as evidence that a victim was alive and breathing at the time of the infliction of head wounds. In the belief that venous air embolism might be underdiagnosed in many medical examiner offices, the authors have sought to bring attention to the entity by publishing their experience with it in cases of bludgeoning.     

"Beaten to death". An autopsy series of homicidal blunt force injuries

Although gunshot is by far the most common means of homicide in the United States, significant numbers of homicides are also perpetrated by other means. Blunt-force injuries are produced by a variety of objects, including hands and feet and many different weapons. Some of these objects produce distinctive patterns of injury of potential evidentiary value. This paper presents a series of 20 consecutive blunt-force homicides in adults. Seventy percent (14 cases) of the victims were men. Thirty percent (six cases) followed an argument or altercation. A number of the weapons used were "weapons of opportunity" seized in the course of the incidents. Sixty-nine percent (nine cases) of known assailants were acquainted with their victims. Few characteristic patterned injuries were seen. Not surprisingly, craniocerebral trauma was the most common cause of death. One half (10 cases) the victims survived their assaults for varying periods of time. Homicides due to blunt-force injury still pose a significant challenge for the forensic pathologist, who must obtain a complete and accurate history of the fatal incident, interpret patterns of injury and other findings at autopsy, and correlate all of the findings to make an accurate ruling of the cause and manner of death.