This is a study out of Japan - but from what I’ve read, the issue is common everywhere. Family members suffer most from violence. Be aware and plan to help avoid bad outcomes. Also - to reduce risk of suicide, be sure to remove all guns, large knifes, ropes, etc. from the house.
There have been several violence-related deaths in Japan due to family violence by persons with severe mental illness against their caregivers. However, it is not often acknowledged that these violent acts are mainly directed at family members.
Of the 277 caregivers, 87.7% had experienced psychological violence and 75.8% had experienced physical violence perpetrated by their relative.