Maybe I have watched too much TV over the years, but here's my take on it:

White male, under age 30, possibly under age 25. Has had some military training and may have had a dishonorable discharge, perhaps recently. Trying to get attention, and prove a point he thinks is valid, but one that most of us will find ridiculous when it's revealed.

If there's a woman involved, she's probably the getaway driver, and not the shooter.

And of course, I could be totally, utterly, completely wrong.