20 Most Shocking Unsolved Crimes

An elusive serial killer known as the Zodiac terrorizes the San Francisco Bay in the late 1960s, while detectives aim to stop him before he claims more victims. Based on a true story.

Bickford Waner, an apparently naive young man from Fort Worth, arrives in the tiny Texas town of Dime Box and takes on a variety of menial jobs. He's befriended by Reese Ford and his wife Molly, but before long Molly has seduced Bickford. Only with the arrival of Bickford's former girlfriend Janet Conforto is it revealed that Bickford is actually the notorious train robber Kid Blue. Humiliated by a scandal arising from his affair with his friend's wife, Bickford gives up on going straight and plots a crime.

A hit man who wants out of the business is targeted by old colleagues.

A 16-year-old international assassin yearning for a "normal" adolescence fakes her own death and enrolls as a senior in a suburban high school. She quickly learns that being popular can be more painful than getting water-boarded.

In 1995, ABC presented a telemovie version of the Broadway musical Bye Bye Birdie produced by RHI Entertainment. It starred Seinfeld's Jason Alexander and Vanessa Williams of Desperate Housewives. While this version remained mostly faithful to the original musical (Michael Stewart remains the only credited author of this version), several songs were added and re-arranged, and dialogue was slightly rewritten to smoothly facilitate the musical changes. The musical revolves around an Elvis Presley-type rocker who's about to join the Army. To mark the occasion, his manager's secretary arranges for him to kiss a random fan goodbye on The Ed Sullivan Show. Bye Bye Birdie earned four Tony awards in 1961, including Best Musical and Best Actor in a Musical for its original star, Dick Van Dyke. In addition to Alexander and Williams, ABC's production starred Tyne Daly, George Wendt, Chynna Phillips and Mark Kudisch.

Courtney Snow, an author with writer's block, still haunted by the suicide of her best friend while they were in prep school, finds herself teaching at the very same school while trying to get back on her feet. She encounters a young student, Laurel, who seems in every way to be the reincarnation of her best friend from years ago. Laurel seems to know things about Courtney that only dead friend would have known. Is she losing her mind or is it all a cruel hoax?

Captain Glass of the USS Arkansas discovers that a coup d'état is taking place in Russia, so he and his crew join an elite group working on the ground to prevent a war.

Panther is a semi-historic film about the origins of The Black Panther Party for Self-Defense. The movie spans about 3 years (1966-68) of the Black Panther's history in Oakland. Panther also uses historical footage (B/W) to emphasize some points.

A pair of cops investigating a drug invasion stumble upon a mysterious bank vault.

In 1990, thieves absconded with 13 masterpieces -- including works by Rembrandt and Vermeer -- from Boston's Isabella Stewart Gardner Museum, pulling off the greatest art heist in U.S. history. Rebecca Dreyfus's investigative documentary delves into this modern mystery, piecing together clues gleaned from archival documents, art critics, historians, collectors and informants (both credible and dubious) to shed light on the as-yet unsolved case. Instant QueuePlay Trailer

Filmmakers investigate 2001 anthrax attacks and uncover a nightmare world.

For the first and last time, Amber Hagerman’s mother details her daughter’s shocking murder and shares chilling documentary footage that captures the 9-year-old’s final days; Amber’s legacy is an alert system that has saved over a thousand children.

Days after 9/11, letters containing fatal anthrax spores spark panic and tragedy in the US. This documentary follows the subsequent FBI investigation.

The story follows a down-on-their-luck couple who discovers a serial killer's film reels. They decide to take the law into their own hands, risking everything for the chance at a $100,000 reward. It isn't long until they find themselves in the killer's lethal cross-hairs.

Sally Lockhart has struck a man dead with just three words, sent to her in a message from her father just before he drowned in the South China Seas. But unfortunately, Sally has no idea what the words The Seven Blessings mean. Before long, she is drawn into a mystery filled with opium, secrets from her own past and, at the heart of it all, the Ruby of Agrapur.

Host Don Wildman takes viewers around the country without having to leave the comforts of home, visiting national parks, statues, and memorials to reveal the history and mysteries that surround these treasures. Whether it be a mysterious disappearance, an unsolved murder or an unexplained haunting, the show reveals secrets and information about each monument leaving the viewer with the a deeper understanding of these important places but often overlooked pieces of American history.

An intelligence analyst at a national think tank in New York City called the American Policy Institute discovers that he may be working with members of a secret society that manipulates world events on a grand scale.

Aphrodite Jones goes behind the scenes of famous murder cases to uncover hidden secrets and new information to shed new light on these sensational stories.

A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.

In this anthology series, heroic scientists risk all to deal with deadly outbreaks.

The documentary takes a detailed look at the disappearance of 3-year-old Madeleine McCann, who vanished while on holiday with her family.

The story of one of the most infamous cases in UK criminal history, that of serial killer Dennis Nilsen. Told through the prism of three men, the series explores the personal and professional consequences of coming into contact with a man like Nilsen.

Alice's partner of 20 years, Harry, falls down the stairs and dies soon after the couple move into the dream home he designed. Alice discovers that some men, including her late ex, hide stuff that they don't want to deal with.

Detective superintendent reopens two unsolved murder cases from the 1980s. Forensic methods link the crimes to a string of burglaries. Steve's team has to find more evidence before the perpetrator is released from prison.

Real cases of perplexing disappearances, shocking murders and paranormal encounters fuel this gripping revival of the iconic documentary series. The official website is unsolved.com

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.

Facing an existential threat that could bring down the Crime Lab, a brilliant team of forensic investigators must welcome back old friends and deploy new techniques to preserve and serve justice in Sin City.

The story of the determined Scotland Yard Officers who worked to prove who was responsible for the death of Alexander Litvinenko, in one of the most complex and dangerous investigations in the history of the Metropolitan Police.

In 1971, a skyjacker parachutes off a plane with a bag of stolen cash — and gets away with it. Decades later, his identity remains a compelling mystery.

In 1982 seven people, mostly in and around Chicago, died suddenly and without explanation. The victims included three people from one family and a child from another. Eventually, a nurse quickly saw a common thread between the deaths; the victims all took the common pain reliever Tylenol, but their capsules were laced with cyanide. The deaths were soon dubbed the "Tylenol Murders" and started a frenzy to find the person responsible as fear spread across the country and store owners pulled Tylenol from their shelves.