Homicide Offenders Research Articles

The language of high‐stakes truths and lies: Linguistic analysis of true and deceptive statements made during sexual homicide interrogations

AbstractPurposeFew studies have assessed deception during real‐life, high‐stakes encounters. This study is one of the largest and most geographically diverse to investigate how criminal suspects lie during investigative interviews. It is also one of the most specific; focusing solely on those who committed sexually motivated homicides.MethodsSections of transcripts from 52 sexually motivated homicide offender interrogations were analysed using Linguistic Inquiry and Word Count software. Truthful (n = 27) and deceptive (n = 25) statements, corroborated through physical evidence, were then compared using the reality monitoring (RM) model of deception.ResultsSupport for the RM model was mixed. Truthful statements contained more motion and spatial details. There were no significant differences between true and deceptive statements when comparing perceptual, affective, and cognitive process details.ConclusionsThe results support the notion that there are verbal cues to deception detectable in high‐stakes, real‐life situations. It also provides a starting point to assess these cues in special forensic populations.

An Exploration of Female Mass Shooters

This research note provides an exploratory examination of female mass shooters in the United States between 1979 and 2019. Specifically, this work provides descriptive statistics of perpetrator, motivation, and incident characteristics. Findings indicate female mass shooters more closely align with male mass shooters than general female homicide and mass murder offenders. The most valuable findings indicate female mass shooters are not motivated by relationship disputes, they often target the workplace, and they are more likely to work in dyads, especially when engaging in ideologically motivated attacks. A discussion of findings provides insight for mass shooting and gender scholars, as well as practitioners seeking to understand female involvement in mass shootings.

Assigning Punishment: Reader Responses to Crime News.

In this study we test how the composition of crime news articles contributes to reader perceptions of the moral blameworthiness of vehicular homicide offenders. After employing a rigorous process to develop realistic experimental vignettes about vehicular homicide in Minnesota, we deploy a survey to test differential assignments of suggested punishment. We find that readers respond to having very little information by choosing neutral or mid-point levels of punishment, but increase recommended punishment based on information about morally charged conduct. By contrast, information about the perpetrator’s immigration status caused respondents to split into two groups on whether the offense deserves neutral or increased punishment. We find that political ideology strongly influences recommendations for more severe punishment when the immigration status of the perpetrator is revealed. We argue that this difference represents a moral dimension to punishment and blameworthiness that incorporates factors outside the active offense and therefore reveals the social influence of differential reporting in shaping public perception.

An epidemiological analysis of public mass shooters and active shooters: Quantifying key differences between perpetrators and the general population, homicide offenders, and people who die by suicide.

An epidemiological analysis of public mass shooters and active shooters: Quantifying key differences between perpetrators and the general population, homicide offenders, and people who die by suicide.

One “Two” Many: An Examination of Solo Perpetrator Versus Team Perpetrator Serial Homicides

The current study examines the offender, victim, and crime characteristics between solo perpetrators and team perpetrators of serial homicide. Cases on 1,137 solo perpetrators and 254 team perpetrators were collected from the Consolidated Serial Homicide Offender Database. Results showed team perpetrators were more likely to be older than those who committed serial homicides alone. Offenders who never confessed their crimes were less likely to participate in teams. In terms of victim and crime characteristics, team perpetrators were more likely to target employees or customers, have a lower victim count, and were more likely to exhibit sadistic behaviors compared to solo perpetrators. Theoretical and practical implications from this study are discussed.

Risk Assessment and Post-Release Recidivism in a Sample of Juvenile Homicide Offenders.

Given recent U.S. Supreme Court rulings regarding the constitutionality of juveniles who received mandated life sentences, questions have arisen in the field of criminology regarding how these offenders will adjust if someday released. Risk scores were calculated for 59 male juvenile homicide offenders (JHOs) based upon the eight domains in the Youth Level of Supervision/Case Management Inventory (YLS/CMI) and used to examine recidivism among the 48 JHOs who were released. Sample subjects were charged as adults for murder and attempted murder in the 1980s, convicted, and sentenced to adult prison. Chi-square analyses were used to assess the relationship between risk score category and two measures of recidivism, which were general arrests and violent offenses. Results indicated risk scores failed to predict both general and violent recidivism. Implications of the findings and directions for future research are discussed.

Why Women Kill: Studying Motives for Committing Crimes

The purpose of the research is to determine the primary internal motives associated with a woman’s decision to commit murder. We analyzed 250 sentences on female homicide offenders in the Russian Federation. The sentences were published on the official websites of the courts of the Russian Federation. We found that the most common motives are: hostility caused by an insult from another person; dislike caused by violence from another person; the desire to protect oneself from sexual harassment. More than 87% of women who committed murder were intoxicated at the time.

Criminal Histories of Intimate Partner Homicide Offenders

This exploratory study investigates intimate partner homicide (IPH) offenders’ criminal histories to examine opportunities for criminal justice system intervention. Data were collected from the Michigan Violent Death Reporting System and Michigan State Police for the 117 IPHs committed in 2014 and 2015 in Michigan. Descriptive statistics on types of criminal charges and convictions for the 103 IPHs committed by aggressors (e.g., not in self-defense) are presented, with relatively few domestic violence charges or convictions. Twenty-nine percent of offenders had no criminal history. Findings highlight a need for more effective and greater implementation of interventions for both criminal justice system-involved and not-involved offenders.

Juvenile Homicide in the United States: Sizing Up the Problem and Moving Forward

Juvenile murder arrests in the United States increased dramatically from 1984 to 1993, leading experts to forecast an epidemic of continued violence. Juvenile arrests for murder from 1995 to 2019 are examined to assess whether this prediction was correct. Changes in the laws in response to juvenile violence and US Supreme Court cases that addressed constitutional limitations to the punishment of juvenile murderers are synthesized. The evolution of research on juvenile homicide offenders over the last two decades is highlighted. Recommendations about ways to move forward by using evidence-based practices to prevent juvenile violence and to reduce recidivism are discussed.

Rates of homicide and homicide associated with severe mental illness in NSW between 1993 and 2016.

To describe the characteristics of offenders found not guilty on the grounds of mental illness (NGMI) in New South Wales and rates of NGMI and other homicide verdicts. Demographic, legal and clinical data after referral to the NSW Mental Health Review Tribunal following an NGMI verdict for homicide matched with results from the National Homicide Monitoring Program. Between 1993 and 2016, a total of 2159 homicide offenders were dealt with by the NSW courts, including 169 (7.8%) who were found NGMI. Over this period, the rate of non-NGMI homicide convictions fell from 1.83 per 100,000 per annum to 0.65 per 100,000 per annum (Kendall's tau = -0.79, p ⩽ 0.001) while the rate of NGMI homicide fluctuated, with an average annual rate of about 0.1 per 100,000 per annum (Kendall's tau = 0.17, p = 0.23). There was no association between the annual rates of NGMI and non-NGMI homicides (Pearson r = -0.3, p = 0.16) but falling rate of non-NGMI homicide meant that the proportion of NGMI offences doubled from 5.5% in the first 12 years to 11% in the second 12 years. Nearly all (88.7%) of those found NGMI had a schizophrenia-related psychosis. However, there were high rates of psychiatric comorbidity including substance use disorder (60.7%) and a history of a prior head injury (41.1%). Most (83.4%) of the NGMI offenders had previous contact with mental health services, but only half of these had received treatment with antipsychotic medication. The fall in conviction for homicide offences in the last 24 years has not been matched by a reduction in NGMI homicide verdicts. More assertive treatment of emerging psychosis and comorbid substance use disorders, and improved continuity of care of chronic psychosis might prevent some homicides.

Does She Kill Like He Kills? Comparison of Homicides Committed by Women with Homicides Committed by Men in Spain

The homicides committed by women make up between 5 and 15% of the total number of homicides recorded in the world. Studies based on the gender of the perpetrator have been uncommon due to the low level of prevalence of female homicide offenders, but this tendency is currently undergoing a change. Nonetheless, in general, there is still limited knowledge of the role of women in serious crime, which makes the task of criminal policy more difficult. Therefore, the present investigation seeks to perform a comparative analysis of the homicides committed by women (n = 56) with those committed by men (n = 521). The cases in this sample correspond to homicides solved in Spain by the Civil Guard between the years 2013 and 2018. The findings of the study show that homicides by women have distinctive characteristics, with 3 out of every 4 taking place in the family environment, and these being dominated by cases of filicide. The victims are underage males with some type of vulnerability and a mental disorder. The female perpetrators tend to have a partner and live with somebody, have a mental disorder and do not present a prior criminal record. With regard to the crime, homicides perpetrated by women take place in the afternoon, without witnesses and in residences; when it comes to the criminal behaviours, they use weapons of opportunity, above all asphyxiating methods, they alter the scene and do not flee from the scene of the crime.

Personality Disorders and Correlates of Homicide Offenders: A Comparative Analysis

ABSTRACT Homicide is one of the most severe crimes in the criminal justice system. Evidence shows that the majority of offenders are likely to have a mental disorder. Studies have established a relationship between personality disorders, substance use and violence among offenders. The need to understand the concept of personality disorders related to homicide and non-homicide offending cannot be over-emphasized in low-and-middle-income countries. This study compared personality disorders, substance use, and correlates between homicide and non-homicide offenders. Faschingbauer’s Abbreviated Minnesota Multiphasic Personality Inventory (FAM) was used. Personality disorders were identified in a comparative study involving 204 homicide and non-homicide offenders in a Nigerian prison. Results indicated that paranoid personality disorder was prevalent among homicide offenders while antisocial personality disorder was prevalent among non-homicide offenders. The highest percentage of substance use was related to opioids among non-homicide offenders. The study helps to understand the importance of psychiatric assessment, mental health services and treatment options for offenders in custody.

Incorrigibility and the Juvenile Homicide Offender: An Ecologically Valid Integrative Review

The United States Supreme Court decision in Miller v. Alabama highlighted the importance of an individual’s “incorrigibility” and the prospect of “irreparable corruption” when weighing possible life sentencing for juveniles convicted of homicide. In this review, we study research in multiple content areas spanning homicide recidivism, life-course-persistent or career criminality, and psychopathology and incorrigibility that bears relevance to the risk assessment of juvenile homicide offenders. A well-developed corpus of research and scholarship in these domains documents the severe, lifelong behavioral impairments of the most violent delinquents. In contrast to studies of non-offender student samples and behaviors that bear no ecological validity to juvenile homicide, the research covered herein emanates from epidemiological surveys, birth cohort studies, large-scale prospective longitudinal studies, and correctional studies including homicide offenders and appropriate control groups of other serious delinquents. A rich research foundation in the social, behavioral, and forensic science informs relevant, reliable, and valid forensic assessments of future criminal deviance and incorrigibility in juvenile homicide offenders.

Childhood trauma, social cognition and schizophrenia: Specific association between physical neglect and cognitive theory of mind in homicide offenders

Schizophrenia is associated with a small, but increased risk of violent behavior, including homicide. Violent individuals with schizophrenia have elevated rates of childhood trauma and substantial social cognitive impairments. The aim of this study was to examine if childhood trauma is related to social cognition in homicide offenders with schizophrenia. We recruited 26 individuals with schizophrenia sentenced to compulsory mental care for homicide/attempted homicide and 28 non-violent schizophrenia controls. They filled out the Childhood Trauma Questionnaire (CTQ), providing scores for physical abuse, sexual abuse, emotional abuse, physical neglect and emotional neglect. Social cognition was assessed with two measures of emotion processing (Emotion in Biological Motion, Pictures of Facial Affect) and two theory of mind (ToM) tests (Hinting Task, Movie for the Assessment of Social Cognition: MASC). Spearman's rho correlation coefficients were computed, and significant results followed up with partial correlation analyses controlling for IQ. Three associations were statistically significant, all in the homicide group; between CTQ physical neglect and cognitive ToM assessed with Hinting Task and with MASC, and between CTQ emotional neglect and Hinting Task. Only the first remained significant after controlling for IQ, indicating a specific association between physical neglect and cognitive ToM in homicide offenders with schizophrenia.

Juvenile homicide offenders: Why they were involved in serious crime.

The perpetration of murders by juveniles (individuals under age 18) has been a serious concern in the United States since the 1960s. As a result of four decisions by the United States Supreme Court during the 21st century, the likelihood that juvenile homicide offenders will be released back into society is substantially higher than it was in the year 2000. Given these changes in sentencing policies and practices, understanding why youths under 18 engage in homicidal behavior is more important than ever for two reasons: to prevent juveniles from killing in the first place and to determine whether their reasons for killing are related to post-release outcome. This research is a part of a 35-year follow-up study of 59 boys, age 14 to 17, who were convicted of murder or attempted murder, and sentenced to adult prisons in a southeastern state. Twenty of these men discussed the reasons for their involvement in murder in person in a second interview conducted by the author 35years after her first interview with them. These men's reasons for engaging in serious homicidal behavior reflected both psychological and sociological factors. Although the type of explanation for criminal involvement was not significantly related to post-release outcome, some interesting patterns were discernible. The implications of these findings, limitations of the study, and suggestions for future research are discussed.

Juveniles arrested for murder: A latent class analysis of male offenders.

Researchers and practitioners have a need for valid and generalizable typologies of juvenile homicide offenders (JHOs) to better understand the heterogeneous nature of JHOs, and use this knowledge to inform prevention efforts. Prior studies of JHOs have typically utilized a clinical approach, which is rich in data but based on small nonrepresentative samples, or relied on larger aggregate datasets which are more reliable but have few measures available. This study aimed to address these limitations by examining the latent heterogeneity (i.e. unapparent differences) in JHOs, their victims, and incident characteristics among more than 40,000 male JHOs arrested in the United States between 1976 and 2016 using latent class analysis, to allow for the objective identification of latent taxonomies. Six distinct subtypes of male JHOs are found in the analysis, which contributes to the theoretical and substantive knowledge base regarding JHOs, and may be used to develop and implement more effective interventions and violence prevention programs for these young offenders.

Survival of the Recidivistic? Revealing Factors Associated with the Criminal Career Length of Multiple Homicide Offenders

Relying on a sample of 1,381 US-based multiple homicide offenders (MHOs), we study the duration of the careers of this extremely violent category of offenders through Kaplan–Meier estimation and Cox Proportional Hazard regression. We investigate the characteristics of such careers in terms of length and we provide an inferential analysis investigating correlates of career duration. The models indicate that MHOs employing multiple methods, younger MHOs and MHOs that acted in more than one US state have higher odds of longer careers. When controlling for career-based attributes, female MHOs are also correlated with longer careers.

The characteristics of older homicide offenders: a systematic review

This systematic review was conducted to develop a broader understanding of the characteristics of older people who commit homicide. PubMed, Embase and PsycINFO were searched on 28 November 2018 for studies on homicides committed by people aged 55 years and over. Only articles published in English were included. Studies focusing on euthanasia and palliation were excluded. Fifteen articles met the inclusion criteria, with studies from the United States (n = 6), United Kingdom (n = 2), Australia, Canada, Finland, Italy, New Zealand, Switzerland and Turkey. The age range for ‘older offenders’ varied across the studies. Some studies examined the phenomena of sexual homicide and homicide-suicide. Offenders were more likely to be male, and the domestic setting for the offence was common. Social maladjustment, a care-giver role, personal physical and mental health problems and/or substance misuse issues were relevant to the offenders. Firearms-related homicides were common. Homicide committed by older people is rare but there may be a constellation of risk factors specific to this age group that needs further understanding. Our findings suggest that there is an increasing need for care of older offenders and a need for specialist forensic services for elderly offenders.

Sexual homicide in Australia and New Zealand: a description of offenders, offences and victims

The field of sexual homicide research is relatively recent, with many existing studies limited by small sample sizes and sampling bias. In Australia and New Zealand specifically, only one study to date addresses this phenomenon but there is a lack of comprehensive descriptive data. This study aims to fill this research gap using a representative sample gathered from public legal databases. A total of 118 cases of sexual homicide offenders are described to create a portrait of this type of offender, their victims and their offence behaviour. Findings are similar to those found in other large samples from the UK, Canada and Germany. Because this crime is rare and practitioners tend to have limited experience of them, the findings of this research have the potential to inform investigative, criminal justice and clinical practice.

Les auteurs d’homicides sexuels : psychopathologie, processus de passage à l’acte et prise en charge clinique

Our perception of sexual murderers has long been influenced by the mediatization of the most spectacular of these crimes–crimes that stand out by virtue of their extreme cruelty and violence, and by the degradation of the victims. Consequently, public opinion has been partly forged by the questions raised by such descriptions: How can anyone be so insensitive to others and driven by such destructive urges? How can these individuals derive any positive experience from such extremely violent acts? But although they are anchored in actual events, these impressions of sexual murderers are not accurate portraits of these individuals’ true nature. While sadistic and serial sexual murderers do in fact exist, they nevertheless remain the threes that hide the forest. Through this interview, our objectives are to take stock of the phenomenon from an epidemiological point of view, to indicate the impact that this type of crime can have on community life, to define what it corresponds to, to describe the characteristics of the different types of sexual homicide offenders, but also to provide indications as to their risk of recidivism and recommendations concerning their clinical management.