Sheriff: Female student shooter dead, another girl injured at Alpine High School in West Texas

I only scanned American school shootings.

03-30-60
jr. high school: girl kills boy
https://news.google.com/newspapers?id=jthHAAAAIBAJ&pg=3467,122520&hl=en

09-17-96
college: girl kills girl
http://digitalnewspapers.libraries....889&href=CLG/1996/09/19&page=1#panel=document

02-08-08
vo-tech: age 23 kills 21 and 26, then suicides, all female.
http://www.wafb.com/Global/story.asp?S=7842633

11-13-08
high school: girl spurns lesbian's advances, gets killed
http://articles.sun-sentinel.com/20...school-district-amanda-collette-teah-wimberly

02-12-10
college: woman professor kills 3 professors
https://en.wikipedia.org/wiki/2010_University_of_Alabama_in_Huntsville_shooting

02-12-16
high school: girl kills girl, suicides
http://www.latimes.com/nation/natio...-phoenix-area-high-school-20160212-story.html

 

why is this surprising? women can do anything men can do!