Not sure it matters a whole bunch, that was an ambush by a wingnut who likely wanted to commit suicide by cop. The fact that is was a long gun, is more important to the Libs. Provides more ammo to the ban cause one way or the other. Just like the Poly shooting was a long gun, happened to be an autoloader, which never did attain ban status, yet.
Don't forget about One Clear Voice folks, they have another campaign going, every little bit counts;
#17
http://oneclearvoice.ca/
#2 is still a very valid letter to work with;
http://oneclearvoice.ca/campaign002.html