Commentary: women, violence, and insanity

Area of Science:

• Forensic Psychology
• Psychiatry
• Criminology

Background:

• Female-perpetrated violence, especially homicide, is under-researched compared to male offenders.
• Women are often stereotyped as less violent, leading to underestimated risks.
• Understanding violence among women with mental illness is crucial for public safety and targeted interventions.

Purpose of the Study:

• To explore common factors among female homicide offenders found not guilty by reason of insanity (NGRI).
• To identify potential links between mental illness, specific symptoms (e.g., religious delusions), and violent offending in women.
• To inform prevention strategies for severe violence perpetrated by women with mental illness.

Main Methods:

• Analysis of a subpopulation of female homicide offenders found NGRI.
• Examination of psychological profiles and potential contributing factors to their violent acts.
• Consideration of limitations, including potential gender bias in insanity defense findings.

Main Results:

• Psychosis with religious delusions identified as a potential factor in some female NGRI homicide cases.
• Acknowledges that non-psychotic motives (anger, jealousy, financial gain, self-defense) are also common in homicides committed by individuals with mental illness.
• Highlights the complexity of motives and the need for nuanced understanding beyond insanity defenses.

Conclusions:

• Studying female NGRI offenders offers insights into severe violence linked to mental illness, particularly psychosis with religious delusions.
• Recognizes that many homicides by individuals with mental illness have rational motives, not captured by NGRI studies.
• Emphasizes the need for caution regarding gender bias in legal and clinical assessments of insanity.