Brian Walshe love triangle. Yale professor's search for justice. Plus, juror misconduct.

Dateline NBC

NBC News

True Crime, Social, Culture, Society & Culture, News

4.4 • 38K Ratings

🗓️ 11 December 2025

⏱️ 27 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

In Massachusetts, Brian Walshe comes face to face with his dead wife's lover in court. Prosecutors say the affair was Walshe's motive to kill his wife. Walshe says that's not true. Forty-three years ago in California, the body of Nancy Galvani was discovered floating under the San Mateo Bridge. For more than a decade, her daughter has suspected the killer was her own father. Last week, he was arrested. Updates in the cases of Luigi Mangione and the Gilgo Beach murders. Plus, NBC News legal analyst and defense attorney Danny Cevallos gives us the lowdown on juror misconduct. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com

Transcript

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0:00.0	Let's go ahead and jump in here, see and get going.
0:04.8	It's the start of another workday here at 30 Rockefeller Center.
0:08.1	Do we know anything about these witnesses who have surfaced?
0:10.6	The Dateline team is swapping tips and story ideas.
0:13.7	Just an update from five minutes ago.
0:15.7	We'll find out who that mystery woman is.
0:19.1	Welcome to Dateline True Crime Weekly.
0:21.6	I'm Andrea Canning.
0:22.6	It's December 11th, and here's what's on our docket.
0:25.6	In San Francisco, a college professor's mission to solve her mother's 40-year-old murder ends
0:31.1	in an arrest of her own father.
0:33.6	She's an epidemiologist, so she knows how to do research.
0:36.6	She knows how to ask questions, and that's what she did when it came to this.
0:40.5	In Dateline Roundup, Luigi Mangione is back in court, and so is an alleged killer in connection with the Gilgo Beach murders.
0:47.9	But it's not Rex Heerman.
0:50.2	A judge asked him if you wanted to stay in Florida and contest the charges there or go back to New York.
0:56.0	Plus, what exactly can jurors get up to in the deliberation room?
1:00.0	NBC News legal analyst and defense attorney Danny Savalos fills us in on juror misconduct.
1:06.0	Twelve people who are total strangers and, you know, they don't always get along and they don't always behave.
1:11.4	But before all that, we're heading back to a Massachusetts courtroom where the Art Swindler
1:15.6	accused of murdering his wife comes face to face with the D.C. real estate agent she was having
1:21.1	an affair with.
	...

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