On the Case with Paula Zahn

Uncover the heart-wrenching true stories behind crimes that transcended headlines and became part of popular culture. Exclusive first hand interviews reveal shocking twists, new evidence, and unexpected resolutions.

The fascinating cases of every day, seemingly average moms, wives and girlfriends accused of murder. Did they really do it? And if so, why?

Real crimes, disease outbreaks and accidents around the world are solved by experts using scientific laboratory analysis which helps them find previously undetectable evidence. Brilliant scientific work helps convict the guilty and free the innocent.

Monsters can be found lurking behind any innocent smile and on any street corner in America. Never-before-seen-video footage stares straight into the eyes of these killers who hide in plain sight. Anyone can be a monster.

These are the terrifying tales of the unwanted neighbors who turn home sweet home into home sweet hell. A look inside the lives of horrific neighborly disputes and what happens when a simple issue turns into the worst night of a family's life. Do you really know who lives next door? This true-crime series tells the chilling tales of those with the misfortune to unwittingly take up residence within a stone’s throw of a psycho or killer.

Revisit the shocking 1999 murder of beloved TV presenter Jill Dando, which continues to mystify experts and the public, in this in-depth documentary.

Incorporating bodycam footage from the initial crime scene, surveillance video, and interrogation room recordings, homicide investigations unfold through dramatic real video footage providing an up-close perspective on homicide investigations.

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

Eerie encounters, bizarre disappearances, haunting events and more perplexing phenomena are explored in this chilling investigative docuseries.

What happened in the final days of Gabby Petito's life? In this gripping true-crime series, her loved ones reveal the untold story of her tragic murder.

Filmed over 10 years, this real-life thriller follows a DNA exoneree who, while exposing police corruption, becomes a suspect in a grisly new crime.

Biography is a documentary television series. It was originally a half-hour filmed series produced for CBS by David Wolper from 1961 to 1964 and hosted by Mike Wallace. The A&E Network later re-ran it and has produced new episodes since 1987. The older version featured historical figures such as Helen Keller and Mark Twain, or long-dead entertainment figures such as Will Rogers or John Barrymore. The A&E series has placed the emphasis on such people as Marilyn Monroe, Elvis Presley, Plácido Domingo, Freddie Mercury, Jacqueline Kennedy Onassis, Eric Clapton, Pope John Paul II, Gene Tierney, Selena, Diego Rivera, Mao Zedong and Queen Elizabeth II, and fictional characters like The Phantom, Superman, Hamlet, Betty Boop, and Santa Claus. The program ended up profiling enough figures that in 1999, A&E spun it off into an entire network, The Biography Channel.

Natural World is a nature documentary television series broadcast annually on BBC Two and regarded by the BBC as its flagship natural history brand. It is currently the longest-running series in its genre on British television, with more than 400 episodes broadcast since its inception in 1983. Natural World is produced by the BBC Natural History Unit in Bristol, but individual programmes can be in-house productions, collaborative productions with other broadcasters or films made and distributed by independent production companies and purchased by the BBC. Natural World programmes are often broadcast as PBS Nature episodes in the USA. Since 2008, most Natural World programmes have been shot and broadcast in high definition.

Filmed across six continents, this docuseries uses cutting-edge camera technology to capture animals' nocturnal lives, revealing new behaviours filmed in full color like never before.

Laci Peterson was eight months pregnant when she vanished, sparking a search that ended in tragedy. This docuseries delves into the 2002 murder case.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

After marrying a mysterious man who claimed he could make her dog immortal, a celebrated vegan restaurateur finds her life veering off the rails.

Utilizing the latest scientific innovations and leading-edge filmmaking technology, this documentary reveals the secret powers and super-senses of the world’s most extraordinary animals, and invites viewers to see and hear beyond normal human perception to experience the natural world as a specific species does — from seeing flowers in bee-vision to eavesdropping on a conversation between elephant seals to soaring the length of a football field with glow-in-the-dark squirrels.

30 for 30 is the title for a series of documentary films airing on ESPN, its sister networks, and online highlighting interesting people and events in sports history. This currently includes four "volumes" of 30 episodes each, a 13-episode series under the ESPN Films Presents title in 2011–2012, and a series of 30 for 30 Shorts shown through the ESPN.com website. The series has also expanded to include Soccer Stories, which aired in advance of the 2014 FIFA World Cup, and audio podcasts. This entry refers to the main Volumes of the series presented by ESPN

From Monday Night RAW to WrestleMania, this series goes backstage with WWE Superstars and staff as they bring the company's biggest spectacles to life.

Nightline, or ABC News Nightline, is a late-night news program that is broadcast by ABC in the United States, and has a franchised formula to other networks and stations elsewhere in the world. Created by Roone Arledge, the program featured Ted Koppel as its main anchor from March 1980 until his retirement from the program in November 2005. Nightline airs weeknights at 12:37 a.m. Eastern Time, after Jimmy Kimmel Live!. It previously ran for 31 minutes, but in 2011, the program was reduced to 25 minutes. When the program moved to 12:37 a.m. ET, the program was expanded to 30 minutes. In 2002, Nightline was ranked 23rd on TV Guide's 50 Greatest TV Shows of All Time.

A series of self-contained stories, each recounting a murder scene as seen from the chilling viewpoint of the killer. Explore the inner workings of a criminal's brain, revealing humanity at its darkest.

The series tells the story of a criminal investigation into the murder of businessman Paulo Gomes de Aguiar at the beginning of August. In the midst of the Vargas government crisis, the murder case is taken by police commissioner Alberto Mattos, an honest and incorruptible man who is not well regarded by his co-workers, as the place is totally turned over to corruption.

The story of the most high profile and unbelievable murder investigation in recent Italian history, resulting from the tragic and brutal slaying of 13-year old Yara Gambiarasio near her home in northern Italy in 2010.

Date Kazuyoshi (Sakai) is a detective on the Kanagawa prefectural police force. During the day, he is known as a "Buddha" for his gentle personality, pouring all of his energy into resolving each case. At night, however, he transforms into a cruel punisher as his gentleness gives way to his anger towards the criminals. The series poses questions about what justice and evil truly are. Tokyograph

Murder: First on Scene is an in depth look at how the police and specialists in the UK and US bring the perpetrators of murder to justice. The series will look at the investigation through the eyes of those first on scene, the police, the experts called in and the prosecuting lawyers. This dramatically shot series will follow the timeline of 10 real life murder cases uncovering the intricate nature and the ingenious methods used by the police to catch a killer. Each case will be brought to life through personal testimonials and stylised reconstruction.

Texas Ranger James Holland doesn’t play by the rules. He’s known as a serial killer whisperer because of his unique brand of interrogation tactics in cases once considered unsolvable. Watch as killers reveal the disturbing truth behind their crimes.

The peaceful city of Luzhou is shaken by a series of so-called justice-driven murders. To crack the case, authorities form the 909 Task Force, which works tirelessly to unravel the layers of the chilling exchange-killing revenge scheme.

Follows the Andrea Yates case, exploring how a rogue street preacher's fire-and-brimstone teachings allegedly brought the vulnerable Texas mother under his control, leading to the drowning of her five children in 2001.

Jaka, a policeman filled with revenge, teams up with his junior, Sekar, and three inmates to hunt down a serial killer. Their research slowly reveals the dark side of the justice system that they have always believed in.

In-depth investigations from the Stuff Circuit team - comprising of an on-screen documentary with interwoven interactive elements.

The peacefulness of the Midsomer community is shattered by violent crimes, suspects are placed under suspicion, and it is up to a veteran DCI and his young sergeant to calmly and diligently eliminate the innocent and ruthlessly pursue the guilty.

From England to Egypt, accompanied by his elegant and trustworthy sidekicks, the intelligent yet eccentrically-refined Belgian detective Hercule Poirot pits his wits against a collection of first class deceptions.

Witness the crime busting techniques and forensic science used by the FBI to break the most baffling cases. From crime scene analysis to the most up-to-date laboratories, FBI agents relentlessly comb through mountains of evidence to narrow their search, ultimately prevailing over the perpetrators and bringing them to justice.

40 years ago, a woman was found dismembered under a highway in Stockholm. It was the beginning of what would become Sweden's strangest and most controversial legal process: the Catrine da Costa case. The two doctors Teet Härm and Thomas Allgén were identified as guilty of the dismemberment. But how did the legal system actually come to the conclusion that they were guilty?

Set in a different Tokyo on a different world than ours, the story follows Tokunana, a unit of assembled misfits in the Metropolitan Police Department. Tokunana battles against "Nine" — an organization commiting crimes in their zealous worship of the dragons that once roamed the world.

Saeki Shuichi was a detective, but he quit his job. He now works at a detective agency. One day, a couple asks the detective agency to find a man named Sakagami. The man killed the couple's son and served at a youth detention center. Kogure Masato is the director of the detective agency. He tells Shuichi to work on the case. Shuichi is also part of a victim's family. When he was a child, his older sister was murdered. While Shuichi watches Sakagami, the couple asks him to find some materials which will allow them to forgive Sakagami or not.

In cases ripped from the headlines, police investigate serious and often deadly crimes, weighing the evidence and questioning the suspects until someone is taken into custody. The district attorney's office then builds a case to convict the perpetrator by proving the person guilty beyond a reasonable doubt. Working together, these expert teams navigate all sides of the complex criminal justice system to make New York a safer place.