A killer puts a complex scheme into play after murdering University of Florida freshman Christian Aguilar. A new investigation unearths the lengths taken to bury the truth.

They Know Everything

Idaho Justice

Karen Read: The Verdict

A secret romance in a remote Alaskan town leads to murder. Police body camera footage reveals clues for a multi-state hunt for the killer.

Cold Blooded

When a young nursing student disappears, her family, police and a woman with a prophetic vision launch an urgent search, but it's a set of keys that unlocks the answers.

The episode highlights the lack of media coverage given to missing cases involving Black women, a disparity that Tameka's story aimed to address.

The Girl Who Looked Like Me

Jealousy leads to murder and detectives discover the killer was closer than they imagined

The Killer Down the Hall

When a young mother disappears, authorities dive for clues and answers in a muddy creek.

Can I Prey First?

The episode delves into the details of the crime, the investigation, and the subsequent trials. It also explores the brothers' childhood, their relationship with their parents, and the factors that may have led them to commit such a heinous act.

The Menendez Brothers: Reversal of Fortune?

A flower delivery turns deadly, when a young woman is fatally shot at her front door.

A Puzzling Murder

A woman goes missing the night of a Halloween party, and her car is found abandoned by the side of the road. The incredible story of Karen Swift, with exclusive interviews.

Her Last Halloween

A heart-pounding body-camera video captures moments after a firefighter is gunned down.

Fire & Vice

It was one of the most notorious murders in the Atlanta area when a father was gunned down while dropping his young son off at preschool just days after a mysterious person was seen lurking outside his home with a gun.

Fatal Disguise

Officers race to find a kidnapped woman, not knowing that saving her would lead to the capture of a serial killer.

Meet the Other Me

JonBenét Ramsey's father speaks about what he thinks police can do right now to identify her killer. Can new technology solve this crime?

Forever Young: Who Killed JonBenét Ramsey?

A college teen vanishes while home on winter break. Will messages on his social media help his family's personal search?

The Last Text

The discovery of a backyard burial leads police to a killer's arrest.

The Lies Beneath

A famed real estate developer, Gary Triano, is murdered in his car by a remote-controlled pipe bomb; money, lies and revenge are the motivations, with evidence leading authorities on an international search to find the killers responsible.

Explosive Secrets

A loving husband is found murdered in his home. Weeks later, his wife receives a chilling death threat on her doorstep. Investigators are left to unravel a web of dark secrets dating back decades.

Run, Run, Run

When an insurance agent is murdered in his office, evidence points to a secret relationship, until new DNA technology helps authorities find the real killer.

File M for Murder

The investigation into a multimillion-dollar con in a close-knit community helps investigators uncover the murder of a young father.

Small Town, Big Con

A new interview with Gabby Petito's parents reveals what we haven't heard before about the case.

Gabby Petito: Her Parents Speak Out

A mother plunges from a cliff in a fatal fall while hiking in the Rocky Mountains on her anniversary. For the first time, her daughter speaks out.

Mountain of Lies

David Muir investigates how cutting-edge forensic DNA technology has led to long-awaited justice in two murder cases that remained unsolved for decades.

The Code Breakers

Two women shot while asleep in their home – one miraculously survives to tell her story.

You Left Me For Dead

The death of Kari Baker, a Texas minister's wife, left a church community shocked and her family convinced it was foul play.

Dirty Little Secret

Newly obtained investigative files provide fresh insight into one of New England's most notorious mysteries, which unfolded after Nathan Carman and his mother Linda Carman took a fateful fishing trip in 2016. Was it lost at sea...or was it murder?

Family Lies?

A beloved celebrity hairstylist is found murdered in his own home in 2017. Was it a burglary gone wrong or something more sinister? His family searches for justice and answers. Who killed Fabio?

Sex, Knives, and Videotape

When Abraham Shakespeare wins $30 million in the Florida lottery in 2006, he is generous with his winnings, helping friends, family, and strangers. But three years after his windfall, Shakespeare mysteriously vanishes. Police begin an investigation, and there is no shortage of possible suspects.

Unlucky Numbers

When Christina Parcell's body was discovered in her South Carolina home in October 2021, the gruesome crime scene also featured a strange clue—mysterious rose petals scattered around the house. Later, another unexpected clue leads to a courtroom confession that no one saw coming.

The Rose Petal Murder

21-year-old Johnia Berry was pursuing a master's degree in psychology at the University of Tennessee when an intruder entered her apartment, stabbing her and leaving her to die. For years, the case went cold, but Johnia's mother kept fighting for justice.

Blood on the Door

Sherri Papini, the woman who captivated the country by faking her own abduction, speaks out in a new documentary for the first time.

Sherri Papini: Where the Truth Lies

Bart and Krista Halderson, a married couple in Windsor, Wisconsin, go missing in 2021. After their remains are found, a clue from social media changes the entire course of the murder investigation.

Road Map to Murder

Bonnie Woodward, a beloved 47-year-old mother of four, goes missing from her workplace parking lot in Alton, Illinois, in 2010, while her teenage stepdaughter is also missing.

I Have Killed For You

The girlfriend of a beloved Boston police officer learns her fate in the murder case that captivated the country across two high-profile trials.

This episode delves into the high-profile case of the University of Idaho murders. It uncovers new details about the crime, the evidence collected, and the shocking guilty plea entered by the accused, Bryan Kohberger. The episode includes exclusive interviews with the families and friends of the victims.

When a wife and mother named Leslie Preer was killed in her house in Chevy Chase, Maryland, in the spring of 2001, shockwaves were sent across the entire community. Her loved ones had to wait for justice for more than two decades until the detectives apprehended the killer using an advanced DNA technology. The investigation revealed a dark truth that connected the killer to the Preer family.

First Comes Love, Then Comes Murder

Exclusive interviews and new evidence in the shocking case of a Colorado dentist accused of murdering his wife by poisoning her protein shakes.

21 Days To Murder

20/20 is an American television newsmagazine that has been broadcast on ABC since June 6, 1978. Created by ABC News executive Roone Arledge, the show was designed similarly to CBS's 60 Minutes but focuses more on human interest stories than international and political subjects. The program's name derives from the "20/20" measurement of visual acuity.

The hour-long program has been a staple on Friday evenings for much of the time since it moved to that timeslot from Thursdays in September 1987, though special editions of the program occasionally air on other nights.

They Know Everything

Seasons29

Season 48 Episodes35

Discussion

Episode Summary