"If you watch Dateline, there's always an end. And that wasn't it." Watch for yourself tonight at 9/8c on a classic Dateline mystery with Josh Mankiewicz on NBC. | Dateline NBC

The Shaughnessy house was full of life and love. Until... The full story tonight on a classic 2-hour Dateline at 9/8c on NBC. | Dateline NBC

It’s the beginning of a mystery where nothing would be what it seemed... The full story tonight at 9/8c on a classic Dateline. | Dateline NBC

"I knew that she had complicated relationships. I don't know what she was mixed up in." The full story tonight at 9/8c on a classic Dateline mystery on NBC. | Dateline NBC