Wisconsin teen Natalie Rupnow joins a rare subset of school shooters: women [Video]

Following her attack on the Abundant Life Christian School in Wisconsin, Natalie Rupnow has joined a rare subset of school shooters: women.

The 15-year-old, who died of an apparent self-inflicted gunshot wound on Monday morning, is one of the few female perpetrators of school shootings in recent decades after a teacher and student were gunned down in the attack on the Madison school. 

Gunmen commit the overwhelming majority of such attacks and, including the Madison shooting, just nine female students have carried out a school shooting since 1999, according to a Washington Post database.

Data from advocacy group Everytown for Gun Safety findsthat women constitute …