Actually the most common victim of a gunshot fatality, in both the USA and Canada, is the owner (80%).  The claim of "self defence" is a gun nut fantasy. The best illustration of that is the NRA executive who got into an argument with his wife. She made it to his loaded handgun before he did and shot him dead. Just deserts?

The next most common scenario after suicide is domestic homicide or a personal dispute.

Gunshot death in other crimes is a distant third.

The only parts of Canada with gunshot death rates close to the average USA rate are Northern and Rural Areas where every second home, on average, has at least 1 long gun.

In the USA gunshot fatalities are about to win their long contest with auto fatalities as a leading cause of death.