This is the 4th or 5th school shooting this year.
It's hard to keep track.
On Monday night, a student was shot and critically wounded outside an athletic center at Widener University in Chester, PA. Last week, two students were shot at a high school in Philly, another was shot at a high school in Albany, NY. Two students were shot at a middle school in New Mexico.
Yesterday, a student was killed by another student at Purdue.
But maybe these shootings don't count because they aren't mass murders. You need at least 4 dead for a mass murder. They're also not sure if anyone was shot in this recent shooting.
So it's hard to get a handle on the stats.