Mass shootings and mass killings/suicides are completely a different discussion than gun violence.
On mass killings/suicides (or death by cop at the scene), the U.S. is almost completely equal to Europe. So whenever something like this happens and the liberals state we have a "problem" that Europe doesn't have, it's FALSE. Utterly and completely.
The U.S. DOES have a problem with gang violence involving guns. Europe does not have nearly the black-on-black or brown-on-brown type of murders the U.S. has. But our country is also something like 35% "brown" with our cities a majority "brown", while Europe is still only about 10% "brown" and their cities are still majority white, European ancestry.
The U.S. DOES have a problem with guns being used for suicide, but U.S. suicide rates per capita are still lower than Europe (particularly eastern Europe). France's suicide rate is almost identical to the U.S. and France has some of the strictest gun laws on the books. When you look at global suicide rates, I don't know if guns are the reason.
http://www.who.int/gho/mental_health/suicide_rates/en/
Because we have more guns we DO have more "accidental" gun deaths, particularly with children that Europe does not have. But this is a very small number in the debate on gun control. When liberals talk about "gun violence" and those numbers in Tibs chart for example, they are talking about 35,000 deaths a year. Of those only about 500 are accidental (1.5%).
So again, every time something like this happen, Tibs and the liberal anti-gun folk love to group all gun violence into one big pot and tell us "bad, bad, bad" as compared to other countries, but when you dig into the numbers, the truth is one thing:
Blacks killing blacks with guns is WHY (and pretty much only why) the U.S. is not the same as Europe when it comes to murder and death. And I'm not sure any gun laws at this point will fix that since black, gang culture is almost more tied to guns than even rural America.
I really want Tibs and the liberals here to explain how more background checks and banning assault style weapons is gong to change gang violence in the country because I guarantee it will not.