"It's inevitable that such a heinous act will happen here in Canada ." (Currently the comment with the most reactions on this topic.)

A heinous act such as this COULD take place in Canada. But before it does, thousands of Canadians will kill each other with guns, knives and blunt objects. Double that number will be killed in motor vehicle accidents, and about the same number will take their own lives in suicide. Of course, that's just the violent deaths. At the same time, hundreds of thousands of Canadians will die from cancer, cardiac arrest and other diseases, as well as from tobacco and alcohol.

What's truly inevitable is that you're going to die of something one day. A rational person looks at the relative risks he or she faces, and takes steps accordingly. IR-rational people- the paranoid, the neurotic, the bigots and the just plain crazies- will fixate instead on a comparatively minute threat and tell us that we're all going to die. You may safely ignore them.