Sue Marcum’s murder unraveled in Dateline special, here’s where to watch free

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• 🔥 Quick Facts
• The Beloved Professor Found Dead in Bethesda
• Romance, Money, and a Hidden Suspect
• DNA Evidence Breaks the Case Wide Open
• The International Manhunt and Surprise Arrest
• Justice Arrives After 15 Years of Waiting
• Where You Can Watch ‘Dateline’ Tonight for Free
  • Watch the Official Trailer
• Who Was Sue Marcum and What Does Her Story Reveal About Trust?
  • Sources

Sue Marcum’s tragic 2010 murder finally gets its full story told tonight on Dateline NBC. After a 15-year manhunt across international borders, the case that shattered an American university community reaches closure. Watch how Josh Mankiewicz unravels decades of deception, hidden finances, and one suspect’s escape.

The Beloved Professor Found Dead in Bethesda

Sue Marcum was discovered lifeless in her Bethesda, Maryland home on October 25, 2010, sparking an investigation that would take over a decade to solve. A close friend made the grim discovery inside her residence, revealing signs of struggle and chaos. A broken tequila bottle lay near her body, and Marcum’s Jeep had vanished from the driveway.

Initial police assessment suggested a burglary gone wrong in the quiet neighborhood. The back door screen had been cut intentionally, and ransacking throughout the house suggested theft was the motive. Yet as detectives dug deeper, they uncovered something far more sinister lurking beneath the surface of this seemingly random crime.

Romance, Money, and a Hidden Suspect

Jorge Rueda Landeros first entered Sue Marcum’s world around 2005 as her Spanish and yoga instructor at the university. Their professional relationship blossomed into a romantic connection as months passed. Marcum trusted him completely and asked him to manage some of her personal investments, a decision that would ultimately prove catastrophic.

Investigators discovered that Landeros had lost over $100,000 of Marcum’s money through mismanaged financial ventures. The financial pressure mounted as Marcum desperately sought loans through multiple channels to recover her losses. When confronted about the vanished funds, tensions escalated dangerously between the two. According to reports, Landeros beat Marcum with a tequila bottle and then strangled her, leaving her body positioned at the bottom of her staircase.

DNA Evidence Breaks the Case Wide Open

Case Detail	Information
Initial Theory	Burglary and robbery gone wrong
Breaking Discovery	Life insurance policies listing Landeros as beneficiary
DNA Match	Landeros’ DNA definitively matched crime scene evidence
Crime Staging	Fake break-in scenario created to mask the real murder

When detectives discovered life insurance documents that named Landeros as a beneficiary, suspicion turned directly toward him. His DNA sample matched evidence found at the crime scene, providing irrefutable proof of his presence during the murder. Police realized that what appeared to be a burglary was actually an elaborate staged crime designed to cover up premeditated murder.

Landeros immediately fled the country after learning his DNA matched the scene. He crossed the border into Mexico and disappeared into Guadalajara, where he assumed the fake identity Leon Ferrara. For more than 10 years, he eluded capture while Marcum’s family waited for justice.

The International Manhunt and Surprise Arrest

The FBI and international law enforcement agencies coordinated an intensive search across Mexico for the suspect. Social media tips emerged in 2021 that connected the Leon Ferrara alias back to Jorge Landeros, reigniting the investigation. Mexican police finally tracked him down and made their arrest on December 13, 2022, while he was walking his dogs in Guadalajara.

Extradition proceedings returned Landeros to Maryland to face justice in the fall of 2025. The 15-year delay had been agonizing for Marcum’s family and colleagues at American University who remembered her as a dedicated educator and vibrant community member. Finally, they would have their day in court.

Justice Arrives After 15 Years of Waiting

An eight-day trial in October 2025 presented damning DNA evidence that placed Landeros at the crime scene beyond any doubt. His legal team argued the crime was a burglary interrupted with tragic consequences, but the jury found him guilty of second-degree murder. On March 3, 2026, a judge sentenced him to 25 years in prison, exceeding the recommended guidelines because of the crime’s exceptional brutality.

“That’s closure,” one of Marcum’s close friends stated in court after hearing the sentencing, expressing relief that the long wait for justice had finally ended.

— Marcum Family Friend, sentencing hearing impact statement

Where You Can Watch ‘Dateline’ Tonight for Free

“The Professor & The Poet” airs Friday, March 6 at 9 p.m. ET on NBC with reporter Josh Mankiewicz presenting the case. If you can’t catch the live broadcast, you have several free streaming options. Peacock will have the episode available the next day, though it requires a paid subscription at $8/month with no free trial available. Alternatively, DIRECTV offers a 5-day free trial that allows you to watch the episode as it airs. NBC’s own website will also feature clips and additional content about the case. Cord-cutters should note that Fubo is currently in a contract dispute with NBC, so availability may be limited on that platform.

Who Was Sue Marcum and What Does Her Story Reveal About Trust?

Sue Ann Marcum was beloved in her American University community as an accounting professor who invested her complete dedication in helping students succeed. Her friends described her as warm-hearted, adventurous, and genuinely kind to everyone she met. She studied Spanish, practiced yoga, traveled actively, and volunteered regularly in her neighborhood. She was the embodiment of a fulfilling life built on service and human connection.

Her story stands as a tragic reminder of how deeply trust can be exploited by those with hidden motives. While Marcum showed generosity and goodwill toward Landeros, he weaponized that trust against her, leading to her violent death. What kind of person can betray someone who opened her heart and her finances? “Dateline NBC” examines this disturbing psychological profile through Mankiewicz’s meticulous reporting. Tonight’s episode provides answers to questions that have haunted Marcum’s loved ones for over a decade.

Sources

• NBC Washington – Coverage of the sentencing and investigation details from March 2026
• NJ.com – Where to watch guide and episode streaming information
• Primetimer.com – Comprehensive episode summary and case timeline