Hugs, pyramid, hon...I'm not a diagnosed sufferer, but am just here reading about what people endure as a result of this disorder.

I would suggest getting some support and counselling for yourself. You're dealing with an exceedingly difficult situation here, and possibly even an escalating and dangerous one.

Local mental health organizations, and especially Women's shelters, are often set up to help provide assistance in situations like yours.

I hate the thought of you and your grandchildren being exposed to and harmed by this type of an individual. His situation might be very complex---and you've got better odds of getting support for yourself than you do of seeing him seeking out help on his own.