Nicole Flatlow at ThinkProgress:

In a news report published Thursday, CNN amends its prior reporting that there were 74 school shootings since the Newtown Massacre — a number calculated by gun violence prevention group Everytown for Gun Safety — and concludes that there have instead been just 15.

“CNN determined that 15 of the incidents Everytown included were situations similar to the violence in Oregon — a minor or adult actively shooting inside or near a school,” the article explains. Except for the times when those criteria don’t apply: “Some of the other incidents on Everytown’s list included personal arguments, accidents and alleged gang activities and drug deals,” the article explains, apparently nixing Everytown’s bright line criteria that encompassed all incidents “when a firearm was discharged inside a school building or on school or campus grounds, as documented in publicly reported news accounts” in exchange for its own subjective assessment.

So if you're mad at someone in particular and you shoot that person, your gun violence doesn't count as much as a person who walks into a school and starts shooting indiscriminately. Good to know! If you accidentally shoot someone, that person wasn't really "shot" by a "gun." It's just an accident! And, uh...I guess "gang activities and drug deals" aren't...hmmmm. What could possibly be the reason to exclude those?