In New York State, tensions escalate on Cornell campus over allegations of sexual assault at the Chi Phi fraternity house in 2024. In Virginia, young nurse and mother Mamta Bhatt went missing two years ago. Her husband is now on trial for her alleged murder. In Ohio, former American Idol contestant Caleb Flynn, convicted of murdering his wife, Ashley, speaks at his sentencing. His daughters' letters to him were read in court. Plus, Dateline Senior Investigative Producer Dan Slepian discusses new Netflix documentary, "The Widower: ‘Til Death Do Us Part."

Listen to the latest episode of "Before & After with Lester Holt": https://podcasts.apple.com/us/podcast/before-after-with-lester-holt/id6806378137

Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.

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In Ohio, former American Idol contestant Caleb Flynn is accused of murdering his wife and staging the scene to look like a break-in. His 24-year-old former lover took the stand against him before the jury delivered its verdict. In Delphi, Indiana, Richard Allen was convicted of the 2017 murders of teens Abigail Williams and Liberty German. His defense is now asking for a new trial. In Dateline Round Up, updates in the case of Lindsay Clancy, the Massachusetts mother whose trial for killing her three children ended in a hung jury.Questions hang over Cornell University as prosecutors re-open their investigation into a student’s allegations of sexual assault. Plus, a veteran K9 handler breaks down how police dogs help investigate crimes.

Listen to the latest episodes of the Dateline podcast, "Before & After with Lester Holt": https://podcasts.apple.com/us/podcast/before-after-with-lester-holt/id6806378137

Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

In Ohio, former American Idol contestant Caleb Flynn is accused of killing his wife, Ashley, and staging the scene to look like a home break-in. Prosecutors reveal their theory of his motive – another woman. In Florida, plastic surgeon Tomasz Kosowski stands trial for the alleged murder of lawyer Steven Cozzi, who disappeared in 2023. Kosowski chose to represent himself in court. In Dateline Round Up, a major development in the case of Nolan Wells, a Mississippi teen who was found dead after a Fourth of July boat trip with friends, and updates in the murder case of University of North Carolina student Faith Hedgepeth, who was killed in her apartment in 2012. Plus, NBC News Chief Consumer Investigative Correspondent Vicky Nguyen discusses social media scams that use generative AI.

Listen to new Dateline premium podcast "Before & After with Lester Holt": https://podcasts.apple.com/us/podcast/before-after-with-lester-holt/id6806378137

Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.