On April 14, 2009, 25-year old student Julissa Brisman is found shot to death in a Boston hotel room; with no witnesses, investigators turn to surveillance cameras to find a serial attacker.

A woman is shot dead during her morning jog through a normally peaceful neighborhood in Glendale, Ariz.; home surveillance footage enables detectives to identify the shooter's vehicle.

On April 10, 2016, 45-year-old Jordie Hudson vanishes after a night out with friends, then investigators find her eye glasses in a pool of blood; a surveillance video shows an attack, and police race to find Hudson before it's too late.

A woman's New Year's disappearance leads to a gruesome discovery; with no witnesses, only the four security cameras from her apartment building can help decipher what happened.

On Nov. 21, 2014, Jessica Padgett disappears; the only lead is her abandoned white Subaru; surveillance cameras show her driving into a parking lot and walking down a back alley, never to return.

Visiting family in Shreveport, La., Tosha Lampkin disappears after making a late-night trip for food, then her burnt-out rental car is discovered along with her remains; CCTV cameras provide detectives with their only lead on her killers.

Diane Cunningham is bludgeoned to death in her bedroom, leaving behind receipts as the only clues; security footage reveals a prime suspect with a motive, but not everything is quite as it seems.

In Madison, Wis., Andrew Nesbitt is found murdered on his 46th birthday; with no witnesses, investigators turn to surveillance cameras in bars and taxi cabs and on street corners to track down his killer.

Twenty-seven-year-old Jessika Kalaher is found strangled in her car in Cedar Park, Texas; with Jessika's wallet and car keys missing, detectives turn to security cameras in the hope of finding out who killed her.

On March 18, 2011, 32-year-old Patty Ayala is murdered at the Burger King where she works; police find the safe open and a mysterious message next to Patty's body, and then examine the surveillance video.

Kimberly Robertson's battered body is found on a sidewalk after a date with her boyfriend; a network of surveillance cameras show Robertson's last few hours alive.

Pregnant student Loretta Saunders vanishes without trace; her trail runs cold after she is spotted on CCTV at her apartment building, then police spot her missing car on a drive-thru camera and race to find her before it's too late.

Fifty-one-year-old care worker Torrance Cheeves is found murdered in his San Antonio home; with no suspects and a trail of puzzling evidence, investigators turn to surveillance cameras in the surrounding area for answers.

On Dec. 23, 2009, Beth von Steinner goes missing, then her frozen body is found days later in a trash pile behind her house; with no witness or suspects, only CCTV footage can unlock the mystery of who killed her.

Police find the body of Fernando Silva on a boat; because the crime scene reveals little about what caused Silva's death, police turn to surveillance footage for clues.

The body of 26-year-old Celina Peterson is found in an alley in the South Park neighborhood of Seattle; when police recover surveillance footage from across the neighborhood, they begin to unravel the shocking truth behind her murder.

On Nov. 12, 2012, Atlanta entrepreneur Terry Porter is found shot dead execution style in his front yard; there is no forensic evidence or witnesses, so detectives attempt to use surveillance footage to catch Porter's killer.

Fifteen-year-old Elizabeth Ennen is seen for the last time when a family friend drops her off at home, but her mother says she never walked through the door.

In San Antonio, Christopher Duncan leaves his apartment never to return again; police have little to go on until surveillance footage offers up the possible identity of a dangerous killer.

When a teenager goes missing from her local Walmart, detectives struggle for leads; then, surveillance cameras reveal terrifying footage of a prowler kidnapping her, transforming this investigation into a desperate race to bring her home alive.

Twenty-four-year-old father-to-be Nathan Trapuzzano is shot dead while taking his morning walk; security footage from the scene shows the final shocking moments of Trapuzzano's life, but it may not be enough to help police hunt down his killer.

Think "Cold Case" meets "CSI" with a bit of "Rizzoli & Isles" mixed in, then make it real. That's the formula for this unscripted procedural drama that follows two veteran female investigators as they attempt to crack murder cases that have lingered for years without answers and closure. Kelly Siegler is an attorney and former Texas prosecutor who successfully tried 68 murder cases in her 21 years on the job, including 20 capital murder death penalty cases in which she secured the death penalty in 19 of those trials. She gets help from veteran detectives, who dig into small-town murder cases that have gone unsolved for years in the hope of getting justice for the victims and their loved ones.

Each episode of this true-crime reality series examines a different felon, usually a female, who has committed murder or attempted murder. The victim is usually the perpetrator's partner. The documentary-style series features interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases.

Moonshiners have been around in the U.S. since the Whiskey Rebellion of the 1790s. Surprisingly, there are still a number of Americans who make moonshine -- an illegally produced distilled beverage -- mainly in the Appalachian region of the country. This docuseries tells the stories of people who brew their shine, often under the cloak of darkness in woods near their homes, and the authorities who try to keep them honest. The show allows viewers to witness practices rarely seen on television, including firing up the still for the first time -- a moonshiner's rite of passage. The show also introducers viewers to moonshining legends such as Marvin "Popcorn" Sutton.

"Murder for Hire" gives an exclusive look into the dark world of contract killings, showcasing some of the most fascinating murder for hire cases ever caught on tape. In an alarming trend, investigators are seeing a sharp increase in hired hits across the country, and those attempting shockingly include: housewives, wealthy bankers, military officers and even grandmothers. From scorned lovers to jealous relatives, the show explores in rare, never-before-seen footage, how a seemingly good relationship can go wrong and the emotions surrounding the reveal when an intended victim discovers a hit has been taken on their life. Each standalone episode features a different case of undercover agents immersing viewers into the real-life sting and investigation as they attempt to catch the perpetrator and ultimately prevent a murder.

Eagle-eyed technical experts prove there is no such thing as a perfect crime as they assemble the pieces every criminal leaves behind. Dramatic crime re-creations and, sometimes, part of the investigations are a staple of the series. Some of the re-creations include alternate versions of the crimes, which are disproved by science. The show's episodes follow each case from the initial investigation until it reaches its legal resolution.