Only 2 on the list opened fire on a roomful of people, and both were aiming at coworkers, subsequent to an employment grievance. The rest were 'thrill killers', [the women usually in concert with a man], or mothers who killed their own children.
There have been zero women who shot people [including children] in one episode of horrific violence, as the shootings of the past 10 years have been. I am sure there will be, because why not? I just said that so far, all the mass murderers [apparently for publicity?] have been males.