@Steel: there is no such thing as a civilian with access to “military style weapons”. Full auto and burst fire weapons have been banned in the US for nearly half a century.
I have a 9mm, .22 and even air gun semi-auto that looks like a “military style weapon”. I’ve seen mods of both rifles and handguns to resemble the characteristics of the other type of weapon. What exactly are you going on about?
A shotgun with slugs or buckshot and handgun would do a LOT more damage in an urban shooting than any rifle, yet the media only highlights these cases when long rifles are used and since it came to light it was a black/brown man doing the shooting, the case has all but disappeared from mainstream media front pages.
Even a knife wielded by a somewhat competent lunatic can kill many silently. Bolt actions have also been successfully used, particularly in the Las Vegas shootings a few years ago.
Other countries have more severe mass killings with knives (some with upwards of 100 victims) simply because their population nor their police have proper weapons. The US doesn’t even rank in the top 10 when it comes to mass shootings or in the top 20 when it comes to mass killings.
Gangs in Chicago alone kill more innocent people per day than the average mass shooting and they have the most strict gun laws in the country. Same goes for DC and NYC, you can’t even carry a gun in NYC.