Talking Dateline: Deadly Obsession
Dateline NBC9 Apr 2025

Talking Dateline: Deadly Obsession

Keith Morrison and Andrea Canning sit down to talk about Andrea’s episode, “Deadly Obsession.” In 2002, Mike Sisco and Karen Harkness were found murdered in Karen’s Topeka, Kansas, home. As the investigation into their deaths unfolded, a suspect emerged with close ties to one of the victims and a history of obsessive behavior. Andrea and Keith discuss the trail of circumstantial evidence that led to an arrest, followed by three trials. And they discuss the wisdom of a defendant choosing to represent themself at trial. Plus, they answer viewer and listener questions from social media. Have a question for Talking Dateline? Leave it for us in a DM on social media @DatelineNBC or in a voicemail at (212) 413-5252 for a chance to be featured on a future episode!

Listen to the full episode of “Deadly Obsession” on Apple: https://apple.co/4qbJuMw

Listen to the full episode on Spotify: https://open.spotify.com/episode/6HMXYws6aYPTcCU8W6xVog


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Episoder(799)

Talking Dateline: Deadly Detour

Talking Dateline: Deadly Detour

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Deadly Detour

Deadly Detour

When a prominent attorney claims to have accidentally shot his wealthy wife, the local prosecutor questions his story. Josh Mankiewicz reports. Blayne Alexander and Josh Mankiewicz go behind the scene...

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Verdict at Kouri Richins' trial. Nurse accused of poisoning friend. Plus, AI at the police station.

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Talking Dateline: Take Two

Talking Dateline: Take Two

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Take Two

A shocking new chapter unfolds in the case of a wealthy podiatrist caught on hidden camera with his girlfriend plotting to hire a hit man to kill his wife. Andrea Canning reports. Blayne Alexander and...

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Kouri Richins' ex-lover gets emotional. Twist in Microsoft employee's murder case. Plus, Josh Mankiewicz.

Kouri Richins' ex-lover gets emotional. Twist in Microsoft employee's murder case. Plus, Josh Mankiewicz.

Mom-of-three Kouri Richins stands trial in Utah for the alleged murder of her husband. Prosecutors call her ex-lover to testify and he weeps on the stand. In Florida, the man who confessed to gunning ...

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Talking Dateline: The Professor & The Poet

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Keith Morrison and Josh Mankiewicz sit down to discuss Josh’s latest episode, “The Professor & The Poet.” Sue Marcum, a beloved accounting professor at American University, was found dead in her Bethe...

11 Mar 27min

The Professor & The Poet

The Professor & The Poet

When Sue Marcum is found murdered in her Maryland home, it appears to be a burglary gone wrong. But DNA from the scene points detectives toward someone she trusted. Josh Mankiewicz reports. Keith Morr...

10 Mar 1h 22min

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