"The (K12SSD) table at right shows that the majority of “school shootings” over the last 48 years occur outside while on school campus. When tied in with non-shooting “school shooting” definitions, such as brandishing, we get a very different picture. By this project’s definitions, if someone on the sidewalk outside the school brandished a gun, that was a “school shooting”. Three percent of “school shootings” in the database involve no shots being fired at all. And if we include single shots (regardless of from where they came, or if they were suicides, or if they were late at night, etc.) those add up to 63% of all incidents."
http://www.gunfacts.info/blog/school-shooting-database-and-p...
I hardly think K12SSD's releases come "with no editorializing".