See No Evil pieces together the truth when shocking surveillance footage reveals breakthrough clues to solve a murder.

The First 48 follows detectives from around the country during these first critical hours as they race against time to find the suspect. Gritty and fast-paced, it takes viewers behind the scenes of real-life investigations with unprecedented access to crime scenes, autopsies, forensic processing, and interrogations.

Some of the world's most incredible engineering projects now lie in ruins. These deserted places are home to extraordinary mysteries and untold secrets, and we revisit them to understand how they were built, and why they were abandoned.They were once some of the most advanced structures and facilities on the planet, standing at the cutting-edge of design and construction. Today they are abandoned, dangerous, some of them even deadly. From uninhabited cities to empty factories, these long-forgotten engineering marvels are scattered around the globe. Science Channel uncovers why some of the world's most advanced architectural achievements were eventually left behind in the all-new series Mysteries of the Abandoned.Each of the six, hour-long episodes of Mysteries of the Abandoned features stories behind engineering wonders, why they were built, and the reasons they were eventually left to crumble. Each story recalls the people who originally designed the structure, their historical significance, and why they were ultimately no longer of use. The premiere episode explores California's Goat Canyon Trestle railway, known as the 'Impossible Railroad,' that required the biggest wooden trestle bridge in the world; Ukraine's Duga, the notorious anti-ballistic missile radar, known as the 'Russian Woodpecker,' that still stands in within the Chernobyl Exclusion Zone; and the Grand Goulets Road in the French Alps, an astonishingly narrow and perilous mountain passageway.

48 Hours is a CBS news magazine that investigates intriguing crime and justice cases that touch on all aspects of the human experience. Over its long run, the show has helped exonerate wrongly convicted people, driven the reopening -- and resolution -- of cold cases, and changed numerous lives. CBS News correspondents offer an in-depth look into each story, with the emphasis on solving the mystery at its heart. The program and its team have earned critical acclaim, including 20 Emmys and three Peabody Awards.

The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

Each week, John Walsh leads viewers through unsolved violent crimes that urgently need to be closed - where time is of the essence and harnessing the power of ID's active and engaged audience could bring these criminals to justice. Joining John in every episode is his son, Callahan Walsh, who leads the operation on the ground, working in tandem with the community and local authorities to search for persons-of-interest. In partnership with the National Center for Missing & Exploited Children (NCMEC), In Pursuit with John Walsh will also feature two missing children each hour, providing age-progression photos and descriptions in the hopes that viewers can provide new leads to their whereabouts.

As the saying goes – they probably seemed like good ideas at the time. The world is peppered with examples of incredible engineering projects and buildings designed to make life easier for those that used them, amaze those that came to see them, and make money for those that ordered, designed and built them. They were the stuff of dreams. Often enormous engineering problems had to be resolved, obstacles overcome and new innovations employed just to get them built in the first place. Alas, a great number of these remarkable structures have now been abandoned, cast aside like enormous expensive out-of-date toys, never to be used in the ways for which they were intended. Each and every one of these extraordinary places is home to a wealth of powerful and compelling stories. We'll see and hear about some of the most spectacular examples of abandoned engineering the world has eve...

How well do you know your housemates? Evil Lives Here tells the heart-stopping tales of people who have shared a home, with a killer. In each episode, loved ones reveal how they came to discover their significant other's evil side.

Accident, Suicide or Murder explores the unbelievable true stories of suspicious deaths. Each episode retraces the investigation from start to finish, taking viewers through the twists and turns of these shocking cases, from dissecting the red flags to the undeniable evidence, and strange behavior that put the tragedy in question. With the families fighting for justice and the detectives on the case determined to find the truth, motives will be exposed and justice will be served as the families finally find out what caused the death of their loved ones.