Break his jaw.
I'm highly against hitting women. To me there is no justification of such an offense.
Collect child support and stay the hell away.
Is he remorseful of what he's done? If he is truly sorry about what he did, then I say forgive him. If he isn't sorry, then don't waste your time with him.Just note that anger is a hard thing to control; as somebody who had severe anger issues, I speak from experience. Sometimes no matter how hard you try to wrangle it in, you can't always control yourself.
What if he paid child support?
So what did you do about it?
Then move on with your life. The past is in the past.Let it go.Let it go.Seriously, though, I doubt anything warrants breaking a jaw. Besides, he's had how many years to get in contact with you to try an right his wrongs, and as far as I know, he didn't. Does it suck not having the closure you want? Sure. But sometimes just because you get closure doesn't mean things still are settled with you. Sometimes it's better to just not know and try to forget about it the best you can.
The fellow wouldn't have been able to find us even if he tried. But, I disagree on closure. The fairest form of the often cruelty of closure is knowing.
Forgive him cos why not.