In the 2021 230 Faces shown, I see (from a quick glance) approximately 10 females (~4.3%), but could be more....I do not have my cheaters here with me right now. What possible would be more informative are pictures of the victims of each shooter, I would like to know if it would corollate to the race and gender of the shooters to a high degree, I suspect it would.
Further as to which of the shooters shown above were at the time of the shooting a "prohibited person" would also help get a more complete picture (though you really can never get a complete picture from any news sources....as frankly each comes to the story with a certain predisposition on one side or the other or their Editor/Publisher does). Another important piece would be how many victims were "strangers" i.e. not known to the shooter, and also what number of victims were gang related victims (this is important....as is the stranger or not issue....).
So bottom line for me looking at this/these posts (without access to the WaPo article itself) and without further information needed such I mention above, I cannot even begin to learn anything, so instead I am left thinking of what a waste of human life and grief to the families and friends of the victims.