The population density of the state of Colorado is not that relevant here. There are areas of Colorado with no population whatsoever, but Denver is a big city. Lots of people. Aurora (I have been there) is a suburb of, and a short drive from, Denver. One report says of Aurora, Colorado that

"Aurora sprawls over a greater land mass than its famous neighbor, Denver, yet has no core. The original city center is now blighted, like so many inner-ring American suburbs, and development over the past half century has spread like water spilled on the floor. The current City Hall is across the street from the mall where the shooting occurred."

When I was in Denver in the mid-1950s, a couple of friends and I drove out there one evening for a few beers. One of these suburban population centers that has no real identity of its own. As someone once said of another place, "There's no there there!"

No, the problem is the archaic, Dodge City style gun laws (or lack of gun laws) that we have in this country.

Don Firth