Josh Mankiewicz reports on the mysterious disappearance of a Colorado rancher.

The survivor of a horrible attack is convinced police have the wrong suspect.

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.

After filming wraps on an indie horror movie, the cast members learn that their lead actress is not who she says she is and has been charged with killing her uncle.

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.

A mother of two goes missing in Monrovia, California. As detectives investigate, the woman's friends and family reveal that she feared she was being stalked. Josh Mankiewicz reports.

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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.

When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports.

In Morris, Alabama, faith is a way of life. But when a man is murdered, rumors involving a pastor begin to swirl and the truth ends up turning the community upside down. Andrea Canning reports.

When a woman dies after what appears to be an accidental fall in the shower, two friends join forces to seek justice on her behalf. Andrea Canning reports.

After Ellie Green doesn't hear from her mother for a few days following an argument, she begins to worry. Then she learns her mother is dead. But is that the truth? Keith Morrison reports.

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 operation to bring down those behind the murder-for-hire plot;

When a pediatric dentist is found dead, police uncovers a complex plot and their suspect leads investigators on an international manhunt; the lead detective speaks out for the first time;

When a soldier, Vannessa, vanishes from Fort Hood, her family do everything they can to bring attention to her disappearance; Secretary of the Army Ryan McCarthy speaks about the investigation and allegations of sexual assault in the military;

After Todd Chance is murdered, police follow a trial video evidence as they work to track down the killer;

Top executives at Pfizer, Moderna, and Johnson and Johnson talk about plans for COVID-19 vaccine distribution and efforts to overcome public mistrust; interviews with key advisors from President Donald Trump and President-Elect Joe Biden's COVID-19 task forces;

A 40-year-old Minnesota woman is shot to death in her bed, while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead;

The latest in the case of a missing young Oregon woman, whose disappearance led to an intense manhunt, after a suspect embarked on a two-state crime spree;

More than 2 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;

The families of George Floyd, Jacob Blake Jr, and Eric Garner open up together in a raw and emotional conversation about their pain, anger, and frustration over police violence;

A romantic Mediterranean cruise, which was intended to rekindle the love between a woman and her ex-husband, had led to the vanishing of her; the investigation would reveal secret recordings, a surprising star witness, and an undercover hit man;

The deadly shooting at U.S. District Court Judge Esther Salas’ home that left her husband Mark injured and their son Daniel dead.

Keith Morrison has the latest developments in the case of a 21-year-old UCLA student, whose body was found in an infamous Los Angeles area train tunnel in 1990.

When University of Utah athlete Lauren McCluskey is found murdered on campus, investigators learn that she had reached out to the campus police for help multiple times before her death. Josh Mankiewicz reports on the latest significant changes and consequences the school is facing.

A nationwide manhunt is launched after a woman dubbed the “killer grandma” goes on the run through the Gulf Coast. Dennis Murphy reports.

A college student goes missing in broad daylight from her off-campus job. As police begin to investigate, they receive a mysterious phone call that changes everything.

Popular basketball player Lorenzen Wright is found murdered in 2010. His mother insists she knows who murdered her son and is relentless in her pursuit of justice. 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.

When the owner of a school promoted as a place to help troubled girls is accused of abusing students, his daughter must decide whose side she’s on. Keith Morrison reports.

When Susan Woods doesn’t show up for work, she is soon discovered dead in her bathtub. As police search for answers, they find a trail of victims. Natalie Morales reports.

Former NXIVM member Dr. Danielle Roberts defends branding members of the alleged sex cult; former members India Oxenberg and her mother, Catherine Oxenberg, open up about how they are doing, after the group's founder is convicted of felonies.

In an attempt to move on from a tumultuous love triangle, South Carolina native Heather Elvis goes out on a first date on December 17, 2013. After returning home, she calls her friend Brianna. Heather is never seen or heard from again.

Witnesses see a woman handcuffed in a parking lot and taken into an unmarked car by a blond woman. But detectives can't find any record of an arrest. Where could she be? Josh Mankiewicz reports.

Amateur internet investigators, new DNA technology and a dogged investigator help police find a killer – and identify a victim for years known only as "Lavender Doe."

Lead detectives in the murder investigation of University of Utah student MacKenzie Lueck speak exclusively to Keith Morrison about the case that made national headlines.

Exclusive new interviews and details on the deaths surrounding Chad and Lori Vallow Daybell, a case Keith Morrison has been on since it drew national attention after Lori’s children disappeared.

When a woman is murdered, a web of sex and lies is uncovered, revealing a prominent family’s dark secrets. Detectives and an FBI informant tell Dennis Murphy about the case for the first time. Update of Secrets in the Suburbs (S20E45).

Kathleen Schroll makes a phone call that names her killer right before her death, it leads to the arrest of a father for murder. But two trials and 12 years later, authorities begin to wonder if he was the victim, not the villain.

When a private investigator and former police officer vanishes, detectives think there may be more to the story when strange text messages start to appear... Keith Morrison reports.

After filming wraps on an indie horror film, the cast and crew learn their killer star isn’t who she says she is. It’s a plot twist that reveals a real-life killer. Keith Morrison reports.

A Michigan community is shocked when a local mother is found stabbed to death. After the case goes cold for more than a decade, a bombshell reignites the investigation. Andrea Canning reports.

A mother of two vanishes, and nearly two years later her body is found in the San Diego Bay, but medical examiners say she had only been dead for about a month or two. Keith Morrison reports.

After a mother and son are found dead, it takes nearly a decade to unravel the case. Andrea Canning reports the latest, including how a second investigation led to a new and unexpected arrest.

Keith Morrison reports on the murder of star gravel cyclist Anna Moriah Wilson and interviews insiders in the case that sparked worldwide headlines.

While investigating the rape and murder of a 22-year-old woman in Texas, detectives uncover a trail of sexual assault crimes pointing to a repeat offender. Josh Mankiewicz reports.

After the death of 44-year-old mother Stacy Feldman in her Denver home is ruled as “undetermined,” friends and family join forces to piece together what happened. Insiders close to the case speak out about the seven-year battle for justice. Keith Morrison reports.

A family begins a relentless pursuit of justice after the death of Nevada attorney Susan Winters is ruled a suicide. Susan's parents open up about the seven-year case and their efforts to push back against the criminal justice system. Josh Mankiewicz reports.

The disappearance of 19-year-old Alaska Native Sonya Ivanoff sends shockwaves through the small coastal city of Nome, Alaska. Police scramble to find answers until a note is found in a stolen police vehicle telling the cops to back off or else. Josh Mankiewicz reports.

The investigation into a deadly home invasion involving business owner Milton Sawyer takes a turn when an unlikely witness on the other side of the country comes forward. Dennis Murphy reports.

Firefighters make a grisly discovery while responding to a fire at the house of Carmela and David Knight in a Toronto, Canada suburb. Andrea Canning reports.

Craig Melvin reveals surprising and exclusive new details about the deaths and legal cases surrounding Alex Murdaugh, the South Carolina lawyer accused of killing his wife and son last year.

Investigators embark on a 15 year hunt for the killer of a Wisconsin pharmacist.

After a woman is found murdered in her South Florida home, her son tells investigators that footage from the home’s security camera could hold the key to finding a killer. Dennis Murphy reports.

A hunting safari in Zambia ends in a nightmare when a shot rings out from inside the campground.

Authorities embark on a 13-year investigation after 17-year-old Brittanee Drexel vanishes during spring break in Myrtle Beach, S.C.

After an apparent brazen home invasion during the holiday season in a quiet Connecticut community leaves Connie Dabate dead, investigators discover a silent witness that cracks the case wide open.

Keith Morrison has the latest on the investigation into the murders of four University of Idaho students: Kaylee Goncalves, Madison Mogen, Xana Kernodle, and Ethan Chapin.

Nearly 40 years after a young wife and mother is found murdered in her upstate New York home, a new team of investigators joins the cold case to uncover the killer. Andrea Canning reports.

A deadly high-speed chase in Montana leads Dateline on a search through 50 years of history to unravel the mystery of how one man turned into a monster and committed one of the state's most notorious crimes.

A North Dakota college student is found murdered in her off-campus apartment.

Colorado detectives investigate the decades-old disappearance of 12-year-old Jonelle Matthews.

A Florida father searches for answers after his daughter dies suspiciously in Belgium.

The latest in the trial of once-prominent South Carolina lawyer Alex Murdaugh includes exclusive interviews with insiders close to the family.

When a Colorado mother vanishes without a trace, the detective investigating her disappearance discovers a connection to a previous assault; for the first time on television, the survivor of that attack recounts her terrifying ordeal.

Updates in the murder case of former NBA star Lorenzen Wright are revealed.

The lead investigator speaks out about the murder of world-renowned snake breeder Ben Renick, found shot to death in a facility crawling with thousands of snakes.

The parents of Kristin Smart speak out in their first network exclusive interview since the recent sentencing of their daughter's killer.

After 27-year-old Jonathan Crews dies mysteriously in his Texas apartment, his family takes matters into their own hands in an effort to find answers.

New details on the infamous murder of Laci Peterson, including more on the appeal of her convicted killer.

The discovery of a young woman's body in an abandoned building in rural Texas sparks a multi-state investigation lasting nearly two decades.

The man at the center of the international manhunt for an American fugitive accused of faking his own death to evade law enforcement agencies speaks out for the first time on network television.

When a woman's fifth husband dies in a hospital under suspicious circumstances, an investigation reveals her to be a charismatic charmer with a mysterious past.

A man convicted of the 1997 murder of Ricky Cowles Jr. in Lancaster, Calif., reveals new details on the case in an exclusive interview.

New details come to light on the investigation into a notorious Idaho case involving multiple murders.

Keith Morrison goes to Moscow, Idaho, to report the latest on the murders of four college students in November 2022. Morrison gets exclusive information on the suspected murder weapon, plus details on an incident police believe the alleged killer, Bryan Kohberger, committed before the murders. Also, we learn more about what was going on in the Kohberger family home in the days before his arrest.

When the body of a 22-year-old college student is found a week after she vanished, theories about her murder run rampant through the Arkansas Ozarks.

When a Texas D.A. and his wife are killed two months after a prosecutor’s murder in the same town, law enforcement fears they may be in the sights of a serial killer. Andrea Canning reports.

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice that leads him down a dark and twisted path.

An unexpected suspect comes to light as investigators work to solve a string of deadly shootings targeting women in the border city of Laredo, Texas. Josh Mankiewicz reports.

Following her husband's sudden death, a Utah mother-of-three writes a book to help her children through their grief; when investigators learn the cause of death and dig deeper into their lives, she is charged with murder.