Dateline NBC — Season 2020

Hiker Meredith Emerson goes missing on Georgia's Blood Mountain on New Year's Day 2008. Could her disappearance be linked to two cases with similar circumstances? Dennis Murphy reports.

After Lisa Ziegert is abducted during her evening shift at a gift shop, local detectives, state police and the FBI work relentlessly to find her and solve the case. Andrea Canning reports.

A glimpse of a sobbing woman lighting black candles is seared into a 9-year-old girl's memory. Decades later that girl reveals what she saw, heating up a long-cold case. Keith Morrison reports.

An inside look at the case that made national headlines in December 2019, when a Texas mother was found murdered after she and her newborn daughter disappeared. Andrea Canning reports.

Family members and the lead investigators who cracked the Kelsey Berreth case speak out for the first time and take Andrea Canning inside the murder investigation.

An investigation into the case of two missing Idaho children making national headlines. The trail leads Keith Morrison to Hawaii in search of their mother and her new husband.

When grad student Katie Sepich is murdered, her killer leaves behind his DNA. The Sepich family fights for both justice and to get the law on DNA collection changed. Josh Mankiewicz reports.

Karl Karlsen's wife dies in a house fire. Then his prized horses die in a fire. And his son dies in an apparent accident. How can one man can be so unlucky? Andrea Canning reports.

A fugitive steals millions of dollars by conning numerous women and businesses over 25 years. Will law enforcement finally be able to catch him? Andrea Canning reports.

A coroner arrives at the scene of a car wreck to find a woman dead. He becomes suspicious when he notices unusual markings on her face. Was her death really an accident? Andrea Canning reports.

Three siblings' lives change when their father is taken hostage in an orchestrated abduction. For the first time, they open up to Keith Morrison about their ordeal and its stunning conclusion.

A decades-long quest to find the truth in a young woman's mysterious death ends with a dramatic courtroom decision. The man at the center of it all tells his story to Dennis Murphy.

When Dr. Teresa Sievers is found murdered in her kitchen, detectives struggle to find any leads until an unexpected tip changes everything. Dennis Murphy reports.

A Connecticut bank executive is targeted by criminals who force him to rob his own bank. Dennis Murphy reports.

A former FBI agent is murdered at his house, and as police dig into his past, they begin to think the key to solving the mystery might be quite close to home. Josh Mankiewicz reports.

A college student is found murdered in a residential neighborhood; as police search for the truth, they are stunned to learn that one of their own might be involved.

Exclusive interviews with close family members of Lori Vallow, the Idaho mother charged with deserting her children, Tylee and JJ, who have not been seen since September. Keith Morrison reports.

The story of Rebecca Musser vs. FLDS leader and notorious FBI fugitive Warren Jeffs. Rebecca opens up to Keith Morrison about life in the church and why she decided to leave the denomination.

A tight-knit Long Island family goes to extraordinary lengths to find their missing sister. Andrea Canning reports.

When Bryan Rein, a young Montana veterinarian, is found dead at his home with a gun nearby, police quickly discover there is more to the case than meets the eye. Keith Morrison reports.

A successful businesswoman and mother of three is found shot in her office; the investigation into her death leaves a family divided. Keith Morrison reports.

A mother of two who vanishes during a storm turns out to be a victim of something sinister. Dennis Murphy reports.

A man calls 911 after his estranged wife is found unconscious in the bathtub. Soon after the mysterious death, loved ones suspect what happened was no accident. Andrea Canning reports.

Two Tulsa brothers fight for more than 20 years to prove their innocence after they were wrongfully convicted for separate murders.

Almost 40 years after a high school senior was stabbed to death in her car after visiting the mall just before Christmas, investigators identify the killer.

A 19-year-old disappears after a night out with her friends. Months later, when another woman survives a brutal attack, it becomes clear that the two cases are connected. Keith Morrison reports.

After a nursing student vanishes from the hospital parking lot in the middle of her shift, investigators track security footage and her cell phone to get to the truth. Keith Morrison reports.

Police suspect natural causes as they investigate a man's death, until they they uncover a love triangle that turns the tragedy into a tangled mystery. Andrea Canning reports.

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International celebrity Oscar Pistorius shoots and kills his girlfriend. When police arrive he says he acted in self-defense, as he believed he was firing at an intruder. Keith Morrison reports.

A suspicious house fire in Ohio sparks an investigation into a supposed suicide 24 years earlier. Josh Mankiewicz reports.

When a Colorado rancher mysteriously disappears, his friends know something isn't right and spend years fighting for answers. Josh Mankiewicz reports.

A young woman survives a brutal attack and detectives work tirelessly to find a suspect. But when they finally do, the victim is convinced they have the wrong man. Keith Morrison reports.

Dennis Murphy has the latest on the case of a Florida law professor murdered in his garage, including new details, newly-released evidence and bombshell testimony from a long-awaited trial.

When a doctor is found murdered, investigators are stumped as to who would want him dead. Police discover simmering jealousies and a love triangle. Andrea Canning has the latest developments.

As detectives investigate a mother of two's sudden disappearance, her friends and family reveal she feared she was being stalked.

An Arkansas realtor goes missing after showing a house. When loved ones later receive mysterious text messages from her, they know something isn't right. Andrea Canning reports.

A 21-year-old college student is found murdered; the case remains cold for nearly forty years until a new detective uses an innovative method to catch her killer.

When a small town Alabama resident is murdered in his home, rumours involving a local pastor begin to swirl as the truth ends up turning the community upside down.

When Leslie Neulander dies suddenly after what appears to be an accidental fall in the shower, two friends join forces to seek justice on her behalf. Andrea Canning reports on the latest twist in the case

After a fight with her mother, Angela, Ellie Green stays with her boyfriend's family until things settle down at home. But when days go by with no word from her mom, Ellie begins to worry. Then she's given the awful news: her mother is dead.

When Ohio resident Pat Sabo is offered $50,000 to kill someone hundreds of miles away, he calls the police to report the incident; acting quickly, investigators set up an elaborate sting

When pediatric dentist Kendra Hatcher is found dead in Dallas, Texas, police uncover a complex plot that leads them on an international manhunt. Keith Morrison reports.

When soldier Vanessa Guillen vanishes from Fort Hood, her family works to bring attention to her disappearance. Vanessa's case inspires a movement across the country. Andrea Canning reports.

After Todd Chance is murdered, police follow a trail of video evidence as they work to track down his killer. Andrea Canning reports.

When police officer Levi Chavez finds his wife, Tera, shot to death in their home, an investigation into her murder begins as buried secrets are revealed. Josh Mankiewicz reports.

A woman is shot to death in her bed while her husband and daughter are home. When police rule out robbery, they are left wondering who would want to kill Jan? Keith Morrison reports.

Soon after 23-year-old Kaylee Sawyer disappears following a night out, an intense multi-state manhunt leads police to find a killer. Keith Morrison reports on the latest updates in the case.

More than two decades since the tragic death of Princess Diana, Dateline reveals new insights into the real story of the very private royal, including a look at Diana's troubled marriage, her turbulent life in the royal family and the investigation into her death. With the rise in popularity of The Crown, Andrea Canning reports on how much of it is true and what was really happening behind the palace gates.