Susan Spencer (48 Hours correspondent)

She made one comment.

Yes.

After that, Delabio says, Mindy fell apart.

She was diagnosed as depressed, suicidal, and homicidal.

She spent nine days in a hospital but still told no one about the abuse.

The fear of going back there anyway and then having told everyone just far outweighed the risk of telling and maybe I wouldn't have to go back.

So doctors released her to the one person she was trying to escape, her father.

That's when DeLavio says her drinking and drug use escalated, and she was running away.

The last time I tried to run away is when social services became involved.

Social services in the person of child abuse investigator Laura Alvarado.

But Mindy was a minor, and what to do was Andy's decision.

A week before the killing, when Alvarado saw Mindy for the last time.

Because, says D'Alabio, Mindy by then had given up hope.

As he heads out to the jail two nights later... Big day, important day tomorrow.

He must make sure she doesn't lose hope again.

Mindy will testify tomorrow.

I have nothing to lie about.

And that means stealing herself to relive the abuse that she says drove her to kill.

Andy, you shot your father.

Yeah, I know.