Snapped: Behind Bars

Shocking true stories involving sex, money, murder – or a fatal cocktail of all three. Told through in-depth interviews, reenactments and archival footage, each hour-long episode delves into an edgy mystery filled with expert detective work, unexpected turns and stunning revelations.

True crime documentary series showcasing stories where individuals are unaware that the night in question will be their last. From a girls'-night-out gone bad to an overnight shift at a local toy store that takes an unexpected turn, the series recounts how an average night can quickly turn into a nightmare.

A true-crime series profiling female murderers and recalling the events that led them to kill.

For more than 25 years, Dateline has brought viewers investigations into some of biggest mysteries in America. This entry in the franchise takes a second look at some of the most mysterious cases of recent history. It explores the stories through firsthand accounts told by people who are close to the crime, including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.

This in-depth docu-series tells the untold true story of the life of Aaron Hernandez, the former NFL superstar who was convicted of murder and ultimately took his own life in prison. Featuring special interviews with Aaron's fiancée, the lead defense attorney, the prosecutor, friends, former teammates, journalists and more, the series examines the intimate details of his tragic life, reveals his darkest secrets and explores what led him down such a dark and destructive path.

Some of the world's most notorious murders are the subject of "It Takes a Killer," which investigates the crimes from the perspective of the killers, trying to get inside their minds and determine their motives. Leading homicide investigators and experts from such agencies as the FBI and Scotland Yard take a look at the evidence pulled from crime scenes and profile the killer's behavior to try to piece together the details of each murder, explaining when, why and how each criminal committed the crime. For the wannabe detectives watching the show, the experts also reveal how the crime was solved — which often requires authorities to think like a killer.