[Homicide-suicide: geriatrics aspects in forensic medicine]

Homicides-suicides within couples are rare situations but can be considered preventable deaths. Various studies have identified risk factors for these couples, regardless of their age, such as a history of domestic violence, psychiatric disorders, addictions, or substance abuse. However, it appears that homicides-suicides among elderly couples have specific characteristics unique to this population. The objective of this study is to draw on recent scientific literature and concrete cases to raise awareness and consider preventive measures for these fatal acts among older individuals. It appears that particular attention should be given in cases where the man is the primary caregiver, when there is a recent deterioration in one partner's health, when hospitalization or institutionalization is being discussed, or when a firearm is present in the household.