It's not gun control that's needed, but gang control. Take out our black and Hispanic gang neighborhoods, and there's no "gun problem" at all.

How many of these gun wielders were allowed by law to posess a weapon? 

I'm fully aware that in today's world it's racist and insensitive to mention this, but it turns out, rich Hollywood film stars and Siliicon Valley  workers aren't shooting each other, nor are South Dakota farmers or Greenwich Whole Foods shoppers. 

MURDERS IN US VERY CONCENTRATED: 54% OF US COUNTIES IN 2014 HAD ZERO MURDERS, 2% OF COUNTIES HAVE 51% OF THE MURDERS

When you look at individual counties with a high number of murders, you find large areas with few murders. Take Los Angeles County, with 526 murders in 2014, the most of any county in the US. The county has virtually no murders in the northwestern part of the county. There was only one murder each in Beverly Hills, Hawthorne, and Van Nuys. Clearly, different parts of the county face very different risks of murder.