Major mental disorders, gender, and criminological circumstances of homicide.

OBJECTIVE: To examine the criminological circumstances of homicide in a group of French murderers with and without major mental disorders (MMD) stratified by the perpetrator's gender. METHODS: Sociodemographic, clinical, and criminological variables were collected from the psychiatric expert reports of 210 cases of homicide heard at the High Court of Angers, France. Murderers were categorized according to MMD diagnosis and gender. RESULTS: Among 210 murderers, 17.6% (n = 37) had a MMD (20% of the female perpetrators). Logistic regression models showed that being a murderer with a MMD was associated with younger age (adjusted Odds Ratio OR = 1.03, P = 0.034), high school education (OR = 2.48, P = 0.036), previous use of psychiatric services (OR = 4.75, P = 0.003), alcohol intoxication (OR = 2.71, P = 0.027), and delusional state (OR = 3.96, P = 0.002) at the time of the homicide. Multiple correspondence analyses showed that female murderers with a MMD were more prone to have depression and to use drowning as a method than those without a MMD, and that male murderers with a MMD more often had a high school education and delusional beliefs at the time of the homicide than those without a MMD. CONCLUSION: Specific profiles of criminological circumstances of homicide could help to explore the risk of homicide in female and male patients with a MMD.

Homicide and Klinefelter syndrome: a complex interaction.

INTRODUCTION: Several studies have shown an association between homicide and sexual chromosomal abnormalities, but data are still lacking regarding Klinefelter syndrome. METHODS: We retrospectively reviewed two cases of homicide perpetrators who were both diagnosed with Klinefelter syndrome on the basis of a karyotype analysis. A neurocognitive assessment was also performed (MMSE, Frontal Assessment Battery, brain CT, and electroencephalogram). RESULTS: Numerous intermediate risk factors of homicide were shared by our two cases, including dispositional (male gender, young age, low socioeconomic status), historical (prior arrest record and past conviction for any offense), contextual (unemployment), and clinical (alcohol abuse). CONCLUSION: It is important that clinicians go beyond obvious risk factors, such as chromosomal abnormalities, to pinpoint other meaningful risk factors and potentially facilitate preventive approaches.

Homicide and Klinefelter syndrome: a complex interaction

Introduction: Several studies have shown an association between homicide and sexual chromosomal abnormalities, but data are still lacking regarding Klinefelter syndrome. Methods: We retrospectively reviewed two cases of homicide perpetrators who were both diagnosed with Klinefelter syndrome on the basis of a karyotype analysis. A neurocognitive assessment was also performed (MMSE, Frontal Assessment Battery, brain CT, and electroencephalogram). Results: Numerous intermediate risk factors of homicide were shared by our two cases, including dispositional (male gender, young age, low socioeconomic status), historical (prior arrest record and past conviction for any offense), contextual (unemployment), and clinical (alcohol abuse). Conclusion: It is important that clinicians go beyond obvious risk factors, such as chromosomal abnormalities, to pinpoint other meaningful risk factors and potentially facilitate preventive approaches. .