yes, and that article also implies it was not Guiliani - at least not him alone - that made NYC safer.
um....
if you broke violence down by demographics then removed demographics, wouldnt you get, well, 1?
(violence rates) / (demographics) / (demographics) = Violence
okay, im being facetious.
i could not find any specific data that parsed out gun vs non gun crime deaths. however, the US may be average with regards to violence:
i did find this work from 1997:
its a book where they present data suggesting the US is
average when it comes to the number of crimes and criminals. the problem in the US is the lethality of which these crimes occur.
one of the main drivers in lethality - guns and their ubiquitousness.
furthermore, taking some liberties and making assumptions, i looked at CDC numbers - 7.5 total homicides per 100,000 and 5.9 gun homicides per 100,000, which would be roughly 1.6 non gun homicides per 100,000.
still higher than europe (France 1.28, Sweden 1.09, Germany 0.71, England and Wales 1.14) but in the ballpark