A killer was on the loose… The full story 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

More than 3 decades and nearly 3,000 episodes later, Dateline is the longest-running primetime series in NBC history. As we enter our 33rd season, Keith Morrison details how we got to where we are today. | Dateline NBC

In an instant, a routine welfare check became a crime scene... ​Tune in tonight at 9/8c for the all-new 2-hour season premiere of Dateline. | Dateline NBC

John would tell people he finally got the homecoming queen... The full story tonight at 9/8c on a classic Dateline. | Dateline NBC