They spent decades searching for justice for Michelle, and then… Tonight at 9/8c on a Dateline Weekend Mystery on NBC. | Dateline NBC

It was a case that touched generations of investigators, who refused to quit until the killer was found… And we'll tell you all about it on a Dateline Weekend Mystery tonight at 9/8c. | Dateline NBC

Tonight on a Dateline Weekend Mystery at 9/8c… | Dateline NBC

The sun was barely up when the girl called 911… The full story tonight on a classic Dateline Weekend Mystery at 9/8c. | Dateline NBC

Surely, it was an accident. Wasn't it? Tonight, on a classic Dateline Weekend Mystery with Keith Morrison at 9/8c. | Dateline NBC

As the mystery of what happened deepened, there would be plenty of talk around this tiny town… Don’t miss tonight’s all-new Dateline mystery with Andrea Canning at 9/8c. | Dateline NBC