https://www.pbs.org/newshour/nation/unl ... a-and-guns
From news reports, court records, hospital data and public death records, KHN found 15 homicides and more than 60 suicides since 2012, although there are likely many more. The shooters often acted during bouts of confusion, paranoia, delusion or aggression — common symptoms of dementia. They killed people closest to them — their caretaker, wife, son or daughter. They shot at people they happened to encounter — a mailman, a police officer, a train conductor. At least four men with dementia who brandished guns were fatally shot by police. In cases where charges were brought, many assailants were deemed incompetent to stand trial.
Many killed themselves. Among men in the U.S., the suicide rate is highest among those 65 and older; firearms are the most common method, according to the Centers for Disease Control and Prevention.
These statistics do not begin to tally incidents in which a person with dementia waves a gun at an unsuspecting neighbor or a terrified home health aide.
Volunteers with Alzheimer’s San Diego, a nonprofit group, became alarmed when they visited people with dementia to give caregivers a break — and found 25 to 30 percent of those homes had guns, said Jessica Empeño, the group’s vice president.