When a young father goes missing, authorities suspect his illegal activities, but a revelation about the mother of his children turns the investigation upside down.

Police believe nurse Kristen Gilbert may have committed up to 60 murders at a hospital in Massachusetts. Some say an affair drove Gilbert to murder while others think her narcissism caused the death of these innocent patients.

The investigation into the murder of a fellow officer plunges detectives into a cavern of secrets and lies.

A parking lot shooting in the dead of night leaves detectives with a long list of suspects, but all along the killer was hiding in plain sight.

Nurse Charles Cullen is one of America's most prolific serial killers. Police say he may have murdered up to 400 victims, Cullen claimed he acted mercifully. An in-depth look into the case reveals the truth behind his motives.

A small town church is stunned when a parishioner is murdered; in a stunning twist the suspect pool is drawn directly from the church walls.

When authorities discover a young woman's body in a shed, they struggle to determine whether her killer is someone under her own roof or the result of an illicit affair.

The investigation into a missing mechanic sends Texas authorities on a wild goose chase that ceases at a dead end… until years later, when a new tip heats this cold case to a boil.

A mysterious shooting of a religious family man leaves a community questioning if it was a drug-related slaying or a bloody family affair.

Sought out by serial killer, Ted Bundy, in the 1970s, Criminal Defense Attorney, John Henry Browne delves into his personal and professional journey to defend one of the most notorious killers in history.

An in depth look at the complexities of the case against the woman branded as America's first female serial killer. Questions still revolve around her claim of self-defense and whether or not she got the justice she deserved.

When a popular construction man in a tight-knit Texas town is found gunned down in his own home, it takes police a decade and a half to track down the killer.

When a charismatic father and adored member of the local youth sports community is bludgeoned to death, police must discern fact from fiction to pinpoint his murderer.

A concerned father in Arkansas reports his son missing, launching an investigation that would unearth a dark network of lies and a horrific discovery more deadly than police ever imagined.

A doting grandmother alerts police when she recognizes her daughter's dead body on the evening news, triggering an investigation that proves blood isn't always thicker than water.

A quiet Wisconsin town is rocked by its first homicide in six years when an eccentric father of four is found dead in his basement.

A deadly fire destroys a home and leaves one man dead, but investigators suspect the fire was an inside job.

A possible love triangle has deadly consequences for a prominent California lawyer.

When a determined son urges police to investigate the disappearance of his father, he is met with a storm of family tragedy and betrayal.

Does a shocking carjacking have ties to international espionage? Or will the murderer turn out to be someone much closer to home?

When a Brooklyn native is found shot to death in the backseat of his car in a rough Atlanta neighborhood, police have to figure out if trouble followed him south or if the killer is in his inner circle.

The death of a Texas racecar champion leads detectives down a winding road of suspects and reveals deep, dark family secrets hidden for decades.

An Army vet survives two tours in Iraq, only to be gunned down in his own home.

A troubled woman turns her life around when she moves back home to the family farm. When her elderly mother disappears, police uncover a twisted web of deceit, betrayal, and forbidden romance.

A generous couple opens their home to help others, but a deadly home invasion raises questions about lies and conspiracy under their roof.