Some lists of “mass shootings” include only the public indiscriminate kind, which is what basically everyone thinks of when they hear the phrase “mass shooting,” but some do include actual gang violence (turf war) or other violence based around other crime (drug deal gone bad). Your red shirt blue shirt scenario is cute, but that would still probably be the public indiscriminate kind. The two phenomena are very different.
There was an article from a big US news source a few years ago about how there had been over a hundred school shootings in the US that year. Can’t remember which source. The list of events included many that happened near a school or on school property but only incidentally. There was at least one where kids shot a gun in a school parking lot when no one else was around. Of course that’s still a problem, but again that’s a very different phenomenon than a “school shooting” where someone tries to murder 20 students. That’s why I brought that up.
Some lists of “mass shootings” include only the public indiscriminate kind, which is what basically everyone thinks of when they hear the phrase “mass shooting,” but some do include actual gang violence (turf war) or other violence based around other crime (drug deal gone bad). Your red shirt blue shirt scenario is cute, but that would still probably be the public indiscriminate kind. The two phenomena are very different.
There was an article from a big US news source a few years ago about how there had been over a hundred school shootings in the US that year. Can’t remember which source. The list of events included many that happened near a school or on school property but only incidentally. There was at least one where kids shot a gun in a school parking lot when no one else was around. Of course that’s still a problem, but again that’s a very different phenomenon than a “school shooting” where someone tries to murder 20 students. That’s why I brought that up.