Canda gets exactly the same media as the US it has a homicide by firearm rater per 100, 00 pop" of 0.51 (56th highest), the US has a rate of 2.97 (28th highest). The difference, the US has 88.8 guns per 100 people, Canada has 30.8 per 100 people.
Canada has exactly the same media, but significantly less murders. Media is not the primary factor, infact given the amount of media crossover between the US and Canada I'd be tempted to suggest it's not even a factor.
Figures taken from this article on the Guaurdian website: http://www.guardian.co.uk/news/datab...hip-world-list
.....and possibly because Canada doesn't have a constitution that witters on about the public's right to bear arms. Yes, the people of the US might
have the right to bear arms, but that shouldn't mean assault rifles, machine guns, AK47's, Uzis, grenades galore, 1000s of rounds of ammo.....like that lunatic mother of the Sandy Hook killer.