When a San Diego woman arrives at an emergency room, she is near death. Her hair is falling out and her vital signs are fading, even though there are no signs of an infection or injury. Doctors, the FBI and local law enforcement are then called in to try to solve not only a medical mystery, but also a horrific crime. Natalie Morales reports. Originally aired on NBC on July 22, 2019.

The Prussian Blue Mystery

Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations.


Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

Society & Culture

Personal Journals

History

Philosophy

Places & Travel

News

True crime

Andrea Canning interviews Josh Mankiewicz about his newest episode, “Evil Walked Through the Door.”  The 1983 murders of Toronto women Erin Gilmour and Susan Tice four months apart left police stumped for nearly four decades. Finally, a breakthrough in investigative techniques led detectives to a freezing town in northern Canada in search of their killer. Josh and Andrea discuss the different ways of handling grief highlighted in the episode, and Josh plays a podcast-exclusive clip from his interview with Erin Gilmour’s brother. Josh describes his chilly journey to Moosonee, Ontario, and Andrea explains how, as a native of Canada, she no longer has a Canadian accent. Then, Josh answers viewer and listener questions about the episode.
Watch Josh’s travelogue of his journey to get the story here: https://x.com/DatelineNBC/status/1781106464355938813

Talking Dateline: Evil Walked Through the Door

The separate murders of two women in Toronto ignite an investigation that spans four decades, taking detectives from the big city to a remote, northern town. Josh Mankiewicz reports.

Evil Walked Through the Door

Andrea Canning talks to Blayne Alexander about her most recent episode, “Justice for Joy.” In 1991, Joy Hibbs was stabbed, strangled, and her Pennsylvania home was set on fire to cover up the brutal crime. The investigation went cold until a detective with the Bristol Township Police Department picked up the case file decades later and uncovered a connection between the department and a man who’d been interviewed at the time of Joy’s murder. Blayne tells Andrea about the Hibbs family’s desperate search for answers and plays a podcast-exclusive clip from her interview with the woman who finally unlocked the mystery. Blayne and Andrea also discuss how motherhood has affected their approach to interviews. Blayne and Dateline producer Justin Balding answer viewer and listener questions about the episode.

Listen to the full episode of “Justice for Joy” here: https://link.chtbl.com/justiceforjoy

Talking Dateline: Justice for Joy

When Joy Hibbs is found dead in a house fire, an autopsy shows she was murdered beforehand. Even with multiple suspects, the investigation stalls, leaving the case cold for years. Decades later, a shocking secret is revealed. Blayne Alexander reports.

Justice for Joy

Josh Mankiewicz interviews Keith Morrison about his latest episode, “The Night Time Stopped.”  The hunt for the killer of champion cyclist Moriah Wilson in 2022 took detectives and the Dateline team from the gravel bike paths of Austin, Texas to the sandy beaches of Costa Rica. Keith tells Josh what he discovered about the suspect’s plastic surgery and the technology that was key to investigators cracking the case. He also shares with Josh a new clip from one of the police interviews and they answer viewer and listener questions from social media.

The Prussian Blue Mystery

Download our free app to listen on your phone