A couple, just engaged, is found brutally murdered in a car. To investigators it looks like an execution. No leads until a surveillance camera 90 miles away gives the investigation its first break - a killer bent on revenge. It's a race against time.

A teenage girl disappears from a Kansas Mall. The only clue for detectives - the haunting final images of her on surveillance video. Somewhere in these frames hides the answer - and a killer...

Missey Smith, Kelsey's mother talks about the Act that was signed into law in 2009. Now, when someone goes missing or their life is in danger, cell phone companies must release information to law enforcement.

Two murders, one witness: Police investigate the strange disappearance of a reporter and exposed to an addictive world of gaming. Across the state a mom vanishes after a party. Detectives have no leads until cameras begin to spill their secrets.

Pensacola news reporter Sean Dugas was an extremely popular and well known guy. When he suddenly went missing, along with the entire contents of his home, police were stumped.

A collection of guns and equipment found in a dumpster 90 miles away seems completely unrelated until surveillance footage helps police piece together the story of a killer. Time is against the police as they track down Christopher Dorner.

A husband and respected businessman vanishes after a meeting. Meanwhile, a young mother doesn't come back from her job search. Cops can only rely on one witness-one that never lies-surveillance cameras.

In Pensacola Florida, two loving parents are brutally gunned down in their own home. The cop's only witness...one that never lies: surveillance cameras. It's what they must rely on, to catch the killers and bring them to justice.

After Skylar Neese disappeared, security camera footage showed police her two best friends were hiding something...but everyone wasn't prepared for the horrific truth - that it was in fact her two best friends that murdered Skylar, in cold blood.

Every parent's worst nightmare comes true when a schoolgirl disappears without a trace. But a few seconds of surveillance footage leads cops to the most shocking discovery imaginable.

Doug Coker vanishes after a business meeting. The perpetrator Pamela Moss's innocent half sister becomes unwittingly involved in the case. It's later discovered Pamela was previously convicted of murder under a different name.

In July 2009 a loving family is ripped apart when Byrd and Melanie Billings, parents to nine adopted kids, are brutally gunned down in their own home in Pensacola, Florida. Is it a robbery gone bad, or a gang hit?

Nursing student Michelle Le vanishes without a trace. Police discover footage that shows Le’s car driving around the parking lot where she disappears, but who is the driver?

Follow the victim, see what happened. All-new episodes of 'See No Evil,' Tuesdays at 10/9c. Only on Investigation Discovery!

Follow the victim, see what happened. All-new series 'See No Evil,' premieres Tuesday, February 17 at 10/9c. Only on Investigation Discovery!

Follow the victim, see what happened. All-new episodes of 'See No Evil,' Tuesdays at 10/9c. Only on Investigation Discovery!

Teenagers Todd Schultz and Annette Cooper go out for a walk one day and never return. Ten days later, they both turn up dead - brutally hacked to bits.

Reeling from the death of their mother, Annie and Jessica Andrews perform a séance to see if they can contact her spirit. Soon after, strange things start happening in the house.

College dancer Jodi has spent weeks practicing her team's big performance. So when she vanishes hours before the event, it doesn't make sense - until a friend comes forward with strange details about the days leading up to Jodi's disappearance.

Everyone loves 25-year-old Sandy Jeffers, but little does she know that one man is completely obsessed with her. When she finally comes face to face with her stalker, the events that follow are twisted, torturous, and ultimately fatal.

Westfield, an affluent suburb just outside the bustle of New York City, is home to picture-perfect homes and families alike. But in the grand home of John List and his family, a true monster hides behind the stately façade.

When Martha Brailsford goes out sailing in Salem, Massachusetts, and doesn’t return, her friends and family immediately suspect that something terrible has happened.

When Denise and her husband John discover that someone has broken into their house, they think they know who the culprit is. But one week after the break-in, Denise comes face to face with the intruder -- and she has no idea who he is.

A mother alone with her baby is horrified when a maniac comes storming into her home.

It's Cassie Jo Stoddart’s first weekend housesitting by her herself, and she’s determined to do a great job. But the high school student’s weekend turns into a real life horror movie when unexpected visitors terrorize the home.

Whenever he's home on leave, devoted father and military helicopter pilot Bob Yates loves videotaping his wife Linda and their four children. But when they move to Spokane, WA - those videos take a sinister turn.

In rural Ohio, an intruder brutally guns down Jack and Linda Myers in their sleep. The only witness is their sleepy four-year-old grandson. Now, members of the Myers family are speaking out about the horror of what happened that night.

When a mysterious illness strikes down Frank Hilley - the father of a prosperous family living in Anniston, Alabama - his widow Marie is forced to raise their two children alone. But then - the family starts receiving strange threats.

Secret double lives of the killers among us exposed.

1996. A father in Texas seeks revenge for the savage dismemberment of his son. A girl in Mississippi desperately tries to escape the metal footlocker she has been imprisoned in... and a rookie detective is assigned a case that will define his career.

An 11-year-old makes a gruesome discovery in her own home while a woman is desperate to reach her mother has a haunting feeling something horrible has happened and one homicide detective is assigned a murder case that will rattle her to the core.