Two factors explain this discrepancy – one, misclassified shootings; and two, overlooked incidents. Regarding the former, the CPRC determined that the FBI reports had misclassified five shootings: In two incidents, the Bureau notes in its detailed write-up that citizens possessing valid firearms permits confronted the shooters and caused them to flee the scene. However, the FBI did not list these cases as being stopped by armed citizens because police later apprehended the attackers. In two other incidents, the FBI misidentified armed civilians as armed security personnel. Finally, the FBI failed to mention citizen engagement in one incident.
Never let your government disarm you. They dont have your interests at heart.
I did read the article, and you are not understanding what the article is claiming. All of those events have been counted, as a separate category of firearm incident, and gun-advocacy groups want them counted a different way. The total number of gun-related events is not in dispute, only whether they make good propaganda points for the death cult side of the argument. They are trying to claim that a ‘good guy with a gun’ frequently prevents violence, and that is simply not what the data presented shows. They are trying to claim that a methodological error has been made, when the reality is that they are just wrong and trying to lie about it.
That “separate category” being “having an ounce of documented context beyond random gunfire” or “suspects being suspected criminals in other ways”. Look at the provided documentation on “active shooter incidents”, it’s a category defined only by lack of known context, usually because they die at the end preventing a court case and additional charges. They have denied “active shooter” classification on the basis of "Was the result of an altercation. (The shooter got into an argument with someone then fired indiscriminately into the crowd.) " This means an “active shooter incident” doesn’t include shooting at police, shooting bystanders in laundromats, random drive-bys, parking lot shootings, redux, or shootings in lounges.
“Active shooters” being defined only by what we don’t know rather than “a person actively shooting” is pure dishonesty.