Dennis Murphy drops by to talk about the latest in the case of Mark Sievers, sentenced to death for murdering his doctor wife. He is trying to convince a judge to give him a new trial. A pre-trial hearing for the model and social media influencer who says she fatally stabbed her boyfriend in self-defense. Plus, you've heard of serial killer John Wayne Gacy — but what do you know about his victims? A new drama series from Peacock takes a closer look.

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

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In Texas, a verdict in the trial of the woman prosecutors say poisoned her fifth husband. In Manhattan, Sean Combs is sentenced to more than four years in prison by a federal judge. Updates in the Karina Cooper, Ghislane Maxwell, and Brian Walshe cases. Plus, Lester Holt joins us to talk about the case of Robert Roberson, a Texas man scheduled to die by lethal injection on October 16th. But a growing chorus of voices is urging the state to take another look.

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

Listen to The Last Appeal: www.nbcnews.com/thelastappeal

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Hey Dateline fans! As a bonus for you, we’re sharing a special preview clip of The Last Appeal, an all-new original podcast series from Dateline and Lester Holt.

In this series, Lester Holt takes listeners inside the urgent case of Robert Roberson, a Texas father set to be executed on October 16th for the 2002 death of his 2-year-old daughter. Lester is on the ground in Texas, where he examines the evidence against Roberson and talks to the people closest to the case, including the lead detective, who now believes he helped put an innocent man behind bars. Lester’s exclusive interviews reveal critical information the jury never heard. This series will confront listeners with questions about justice and truth, and perhaps the most haunting question of all: Is an innocent man about to be put to death?

To start listening, just search “The Last Appeal”. And remember to follow for new episodes releasing each day this week. For ad-free listening, subscribe to Dateline Premium on Apple Podcasts, Spotify, or DatelinePremium.com.

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Opening arguments in the trial of Sarah Hartsfield, the Texas woman accused of murdering her fifth husband. A mistrial in Mississippi for a man whose daughter and wife took plea deals. Updates in the cases of Donna Adelson, Nicholas Rossi, and Sean Combs. And spam texts and phone calls cost us more than one billion dollars every year — what you need to know.

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

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In Texas, a woman accused of poisoning her fifth husband is gearing up for trial next week. A California hookah lounge owner was found guilty of murdering his girlfriend over a decade ago, but the conviction was overturned. Now, he's getting a new trial. Updates in the Karen Read and Rex Heuermann cases. Plus, the Dateline correspondents are hitting the stage live in Nashville this weekend, and we've got a preview.

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

To learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event

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A New Jersey man accused of murdering his brother and his brother's entire family, then setting fire to both their homes to cover up his crimes, wants out of jail after seven years waiting for trial. In Florida, prosecutors release all-new evidence to the public as they build their case against a couple they say orchestrated a hit on Microsoft employee Jared Bridegan. Updates on Chad Daybell and his jailhouse letters, and the sentencing of Brooks Houck, the convicted killer of Kentucky mom Crystal Rogers. Plus, why sentencing a murderer is harder than you'd think.

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

To learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event

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After just over three hours of deliberations, a Florida jury finds Donna Adelson guilty on all counts — but could more charges be coming in the case? In Utah, a woman is charged with killing her husband. Now, she's admitted to her role in the plot — and says her mother and brother were involved, too. Updates on the Burning Man murder and the Wisconsin kayaker who faked his own death. Plus, when should a defendant take the stand in their own defense?

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

To learn more about Dateline LIVE in Nashville on Sept. 28, and to get tickets, go here: https://www.nbcnews.com/dateline-event

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Inside the defense of Florida grandmother Donna Adelson. In Long Island, a judge's ruling on DNA ahead of alleged Gilgo Beach serial killer, Rex Heuermann's, murder trial. Plus, almost 21 years after her daughter was murdered, a mother hits the road to bring awareness to the unsolved case.

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