>>>In his case, he was kicked out of college and told not to come back until he had a psychiatrist's evaluation. There were other warning signs too.
>>
>>Such as, owning a 33-round magazine for a Glock pistol? :-/
>>
>>The Canadian handgun magazine capacity limit is 10 rounds: http://www.rcmp-grc.gc.ca/cfp-pcaf/faq/index-eng.htm#a6
>
>It may have cut down on the number of victims, but I doubt if it would have prevented any. It hasn't stopped Canada from having victims of gun crimes:
>
>http://www.cbc.ca/canada/north/story/2010/10/14/nunavut-cape-dorset-shootings-reax.html
>http://cnews.canoe.ca/CNEWS/Crime/2011/01/01/16727131.html
>
>The problem still lies in recognizing mental illness, alcohol abuse, other drug addictions, and when there are warning signs, doing something about it.
>
>And now we know he was registered as an independent and didn't even vote in November:
>http://voices.washingtonpost.com/thefix/house/jared-lee-loughner-was-a-regis.html

I believe reducing the number of victims is a valuable thing. What do you mean that you "doubt if it would have prevented any"? Do you have proof that magazine capacity restrictions don't work?