It has been a year since my assistant, Jennifer Mascia, and I started publishing The Gun Report, an effort to use my blog to aggregate daily gun violence in America. Our methodology is pretty simple: We do a Google News search each weekday morning for the previous day’s shootings and then list them. Most days, we have been finding between 20 and 30 shootings; on Mondays, when we also add the weekend’s violence, the number is usually well over 100.

From the start, we knew we were missing a lot more incidents than we found. The Centers for Disease Control and Prevention, after all, says that nearly 32,000 people are killed by guns each year. Slate, the online magazine, which tried to tally every gun death in the year after the tragedy in Newtown, Conn., arrived at a number of 12,042, far higher than ours. (We include gun injuries as well as gun deaths.)Part of the issue, as Slate has noted, is that it is impossible to track suicides using news media accounts — and suicides, according to the C.D.C., account for some 60 percent of gun deaths. But it was also obvious that a Google News search was bound to miss plenty of examples; that’s just the nature of the beast. Comprehensiveness was never really the point, though. Mostly we were trying to get a feel for the scale and scope of gun violence in America. A year later, it seems like a good time to take stock.

First, the biggest surprise, especially early on, was how frequently either a child accidentally shot another child — using a loaded gun that happened to be lying around — or an adult accidentally shot a child while handling a loaded gun. I have written about this before, mainly because these incidents seem so preventable. Gun owners simply need to keep their guns locked away. Indeed, one pro-gun reader, Malcolm Smith, told me that after reading “about the death toll, especially to children” in The Gun Report, he had come to believe that some gun regulation was necessary. He now thinks gun owners should be licensed and “should have to learn how to store guns safely.” No doubt he’ll be drummed out of the National Rifle Association for expressing such thoughts.

Second, the N.R.A. shibboleth that having a gun in one’s house makes you safer is demonstrably untrue. After The Gun Report had been up and running for a while, several Second Amendment advocates complained that we rarely published items that showed how guns were used to prevent a crime. The reason was not that we were biased against crime prevention; it was that it didn’t happen very often. (When we found such examples, we put them in The Gun Report.) More to the point, there are an increasing number of gun deaths that are the result of an argument — often fueled by alcohol — among friends, neighbors and family members. Sadly, cases like the recent shooting in a Florida movie theater — when one man killed someone who was texting during the previews — is not all that uncommon.

Third, gang shootings are everywhere. You see it in the big cities, like Chicago, Detroit and Miami, and you see it in smaller cities in economic decline like Flint, Mich., and Fort Wayne, Ind. Drive-by shootings are prevalent in California, especially Los Angeles and Fresno. As often as gang members shoot each other, they kill innocent victims, often children who happen to be in the wrong place at the wrong time.

Among the readers who post daily comments to The Gun Report are a number of gun rights advocates. What has been astonishing to me is the degree to which they tend to dismiss inner-city violence, as if to say that such killings are unavoidable. The code word they often use is “demographics.”

It is unquestionably true that the most gun homicides occur in the inner cities — the anecdotes we collect in The Gun Report are confirmed by such studies as a May 2013 Bureau of Justice Statistics report. And, yes, plenty of them are the result of gang violence. But why should that make them any less lamentable, or preventable?

There are an estimated 300 million guns in America, and that’s not going to change anytime soon. But to read The Gun Report is to be struck anew at the reality that most of the people who die from guns would still be alive if we just had fewer of them. The guys in the movie theater would have had a fistfight instead of a shooting. The momentary flush of anger would pass. The suicidal person might have taken a pause if taking one’s life were more difficult. And on, and on. The idea that guns, on balance, save lives — which is one of the most common sentiments expressed in the pro-gun comments posted to The Gun Report — is ludicrous.

On the contrary: The clearest message The Gun Report sends is the most obvious. Guns make killing way too easy.