Homicide-suicide and the role of mental disorder: a national consecutive case series.

PURPOSE: There is a lack of robust empirical research examining mental disorder and homicide-suicide. Primary care medical records are seldom used in homicide-suicide research. The aims of this study were to describe the characteristics of offenders and victims; determine the prevalence of mental disorder and contact with mental health services and examine adverse events prior to the offence.

METHODS: This was a mixed-methods study based on a consecutive case series of offences in England and Wales occurring between 2006 and 2008. 60 homicide-suicides were recorded. Data sources included coroner's records, police files, General Practice (GP) and specialist mental health records, and newspaper articles.

RESULTS: The results show that most victims were spouse/partners and/or children. Most perpetrators were male (88 %) and most victims were female (77 %). The incidents were commonly preceded by relationship breakdown and separation. 62 % had mental health problems. A quarter visited a GP for emotional distress within a month of the incident. Few had been in recent contact with mental health services before the incident (12 %). Self-harm (26 %) and domestic violence (39 %) were common.

CONCLUSION: In conclusion, GPs cannot be expected to prevent homicide-suicide directly, but they can reduce risk generally, via the treatment of depression and recognising the risks associated with domestic violence.