Tonight on Dateline.

They claimed that I, this grandma, was the mastermind behind the murder.

Never in a million years would I have wanted Daddy to be harmed or killed.

A stunning new turn in a twisted family saga of murder and betrayal.

The 70-something-year-old woman who bakes banana bread and takes care of her grandchildren.

It's hard to embrace that she could commit such a heinous act.

Her son, Charlie, knew how to get it done.

He was Donna's right hand.

The daughter, Wendy, is at the center of this entire story.

I was not involved in any plot to kill Danny. The estranged son,

Rob Aetelson. Who is the leader in the family? Who tends to run a show? I think my mom. A very

powerful witness. He had direct evidence to offer. I am an innocent woman. She's just being a parent,

not a killer. She's a meddler, not a murderer. We have a jury, fine, the defendant.

Shock. It's such a traumatic moment.

A dad gunned down in his garage. A family turned toxic.

Ten years of twists come down to a shattering moment in court.

I'm Lester Holt, and this is State Live.

Here's Dennis Murphy with Deadly Mischief.

For 50 years, contestants have been spinning that wheel and trying to solve that puzzle.

It's a bit like trying to solve a crime.

Each clue revealed brings a bigger picture into focus.

And that brings us to a certain contestant in 1989.

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