In Long Island, Gilgo Beach serial killer Rex Heuermann pleads guilty to murders spanning decades. The families of his victims speak out. In Hawaii, a verdict at the trial of anesthesiologist Gerhardt Konig, who is accused of attempting to murder his wife on a hike. Plus, a veteran prosecutor explains what reasonable doubt means in a jury trial.

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Blayne Alexander sits down with Andrea Canning to discuss her latest episode, "Temptation." In 2023, IRS agent Brendan Banfield told police he'd walked into the bedroom of his Virginia home to find a stranger brutally stabbing his wife, Christine. He said he'd shot the man to try and save Christine but it was too late. She died from her injuries. Investigators didn't buy Brendan's story and discovered he had been having an affair with the family au pair. They determined the double homicide was the result of a diabolical catfishing scheme to lure a stranger named Joe Ryan to the Banfields' home and frame him for Christine's murder. Andrea shares an extra clip from the au pair’s testimony where she admits to posting romantic photos and videos with Brendan. Blayne discusses her family’s positive experience with the au pair program, and Andrea reveals her stint as a live-in nanny for “Baywatch” star David Hasselhoff. Plus, we answer your questions from social media.

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Listen to the full episode of “Temptation” on Apple: https://apple.co/4veKJhw

Listen on Spotify: https://open.spotify.com/episode/5oZtmCAuf7YFypvB21vQ26?si=b3b6dd2fa8e145da

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Blayne Alexander reports on the Virginia double murder case of a father accused of killing his wife and a stranger in a sinister plan involving the family au pair.

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Hawaii anesthesiologist Gerhardt Konig stands trial for allegedly attempting to murder his wife on a hike. His son is taking the stand against him. In South Carolina, a pastor pleads not guilty to charges of cyberstalking, abusing his wife, and lying to investigators about it. In Dateline Round Up, alleged Gilgo Beach killer Rex Heuermann expected to plead guilty. Plus, an interview with Beau Buzbee, father of 17-year-old Hailey Buzbee who died after meeting a stranger online.

This episode discusses suicide. If you or someone you know is in crisis, call the Suicide & Crisis Lifeline at 988 or visit 988lifeline.org for more resources.

For resources on domestic violence, call the National Domestic Violence Hotline at 800-799-7233. Or visit thehotline.org

And helpDateline’s "Missing in America" win a Webby award. Vote here: https://vote.webbyawards.com/PublicVoting#/2026/podcasts/shows/crime-justice

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A football player and homecoming queen fall in love, but when the husband is found stabbed to death, authorities begin to investigate a trail of evidence. Dennis Murphy reports.

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A fatal fire that struck a young couple's Palo Alto home appears to be an accident until investigators took a closer look. Keith Morrison reports.

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In her first interview since her mother’s disappearance, TODAY co-anchor Savannah Guthrie shares her family’s fears and anguish with Hoda Kotb, as well as their hope for answers.

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In Hawaii, anesthesiologist Gerhardt Konig is on trial for allegedly attempting to murder his wife while on a scenic hike -- and she's taking the stand against him. In Mississippi, a man is being tried a second time for the murder of his daughter's boyfriend, Kirby Carpenter. Prosecutors say the proof is the victim's silver coins found in the defendant's car. In Dateline Round Up, verdicts in Utah and New York, plus an arrest in the 2011 murder of an Iowa realtor. And tips from a real estate agent on how his colleagues can keep themselves safe on the job.

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

Start listening to "Trace of Suspicion" here: https://www.nbcnews.com/traceofsuspicion

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