[Quilla]

What do they know about him other than he is male.

The killer is using a voice altering mechanism. My husband [haven't got a clue what makes him think women are evil :)], thinks a woman could be doing this just as easily as a man. Do we know for a fact that this is a man? The only witness, I thought, was charged for making false statements.

[ThinkingMan]

Good point. I have wavered between homegrown or ME, one or multiple, etc.

It would suprise me greatly, however, if the shooter was a female. It just does not fit. Men have a much greater prepostion to violence. Yes, there are violent women, but MOST of those violent acts are acted out in a short, explosive, passionate fit. No, I don't have stats to back up that claim, just basing it on many years of following news.