Actually they don't.. Toronto is still one of the safest cities in the world... between 50-70 homicides annually.. that is very low for a big city
And, as a matter of fact, Toronto is ranked 29th in crime in Canada.. so there are 28 cities with higher crimes rates (based on percentage of crimes per inhabitants).. this includes murder, attempted murder, aggrevated assaults, sexual assaults, break n enter, etc...
in fact the crime rate in toronto ha been declining steadily since the late 80's. I have done a lot of research in this area, so I know my crap..
Look it up if you don't believe me
It's the media that needs to sell news that hypes this stuff.. plus it's a big city - stuff happens