" far more people in the l States"

Doh! What a Gun Nut Doofus.

Homicide and Gun Shot Death RATES are normalised per 100,000 or million of population. That allows RATES to be compared between countries with different populations.

The USA leads the world in Gun Shot death RATE and multiple murder incidents(Going Postal) RATES among developed countries. Nearly one multiple murder incident a day in the USA. It is so bad that they only make the national news when the body count gets up into the double digits, or it involves yet another school or college or less often "Islamic Terror".

That said, the most common Gun Shot Death scenario in both Canada and the USA is suicide. Domestic Homicide and Personal disputes come second. Use of firearms in other crimes is a distant third.

https://www.nytimes.com/2017/11/07/world/americas/mass-shootings-us-international.html

http://www.huffingtonpost.ca/entry/guns-deaths-car-deaths_us_56991b31e4b0ce4964242c47