There comes a point when a person can no longer drive due to cognitive issues.  That is not saying they are mentally ill, they are just not able to process the dynamics of a situation in a manner that allows them to function in that capacity.  Same goes for firearms.  Many folks get their firearms for self-defense.  But what happens when they can’t make the judgment calls that come with operating in that capacity?  What happens when my perceptions of a situation are off due to memory and cognitive decline?  At that point, the firearm is a danger to myself and everyone in the home.  Current law prevents those with diagnosed mental illness from owning a weapon.  Problem is, it doesn’t recognize mental capability decline in the same way so we can get situations like this.  Gpa in this situation could easily have seen Gma as a threat due to perception issues and addressed the “threat” even though now he can’t recall what that “threat" was.