A killer was on the loose… The full story tonight at 9/8c on a Dateline Weekend Mystery on NBC. | Dateline NBC

Investigators walked into a mystery that would turn their world upside down… Watch tonight at 9/8c on a 2-hour Dateline Weekend Mystery on NBC. | Dateline NBC

A monthslong hunt for two killers led detectives to the last person anyone expected... Andrea Canning reports tonight at 9/8c on a classic 2-hour Dateline. | Dateline NBC

Tonight on a Dateline Weekend Mystery at 9/8c, Dennis Murphy has all the details on the murder that Cedar Rapids, Iowa never forgot... | Dateline NBC

Today on a new Dateline: True Crime Weekly, Andrea Canning has the story of a former Olympian accused of being a drug kingpin responsible for several murders, a big ruling in the Mangione case, and a verdict in the trial of a Virginia man accused of masterminding a double murder. Listen now: https://podcasts.apple.com/us/podcast/verdict-in-double-murder-trial-olympian-accused-of/id1745566056?i=1000748321316 | Dateline NBC