Introduction: For the purposes of tracking crime data, the FBI defines a "mass shooting" as any incident in which at least four people are murdered with a gun.

This will resolve to YES if a shooting in a school occurs in the United States with four or more fatal victims, before end of 2024, from the creation date of this question.

This will resolve to NO if no school shooting occurs in the US with four fatal victims or more.

(The perpetrator will not be counted as a victim.)