What's next for Lindsay Clancy? A teen's murder on cruise ship. Plus, does the insanity defense work?

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<p>In Massachusetts, the murder trial of Lindsay Clancy comes to an end after lengthy jury deliberations. What happens next for&nbsp;the 36-year-old mother and former nurse who says she killed her three children while suffering from postpartum psychosis?&nbsp;Eighteen-year-old Anna Kepner was found dead on a cruise ship last November. The Florida teen’s&nbsp;stepbrother, Timothy Hudson, is now heading to trial&nbsp;in connection to&nbsp;her murder. In Dateline Round Up, Barry Morphew, the Colorado man accused of killing his wife, Suzanne, is back in court for other alleged legal troubles before his trial. An update in the case of Microsoft employee Jared Bridegan, who was allegedly killed by a hitman hired by his ex-wife, Shanna Gardner,&nbsp;and her husband,&nbsp;Mario Fernandez Saldana.&nbsp;Plus, NBC News Legal Analyst Danny Cevallos explains how the insanity defense works.&nbsp;</p><p>&nbsp;</p><p>Follow Dateline’s newest podcast,&nbsp;"Before &amp; After with Lester Holt": <a href="https://podcasts.apple.com/us/podcast/before-after-with-lester-holt/id6806378137" rel="noopener noreferrer"><u>https://podcasts.apple.com/us/podcast/before-after-with-lester-holt/id6806378137</u></a></p><p>&nbsp;</p><p>Find out more about the cases covered each week here: <a href="http://www.datelinetruecrimeweekly.com/" rel="noopener noreferrer"><u>www.datelinetruecrimeweekly.com</u></a>.&nbsp;</p><br/> <p>Hosted by Simplecast, an AdsWizz company. See <a href="https://pcm.adswizz.com">pcm.adswizz.com</a> for information about our collection and use of personal data for advertising.</p>