Season 23 - Episode Guide

Death may have ties to international espionage, or the murderer could be someone closer to home.

When a young father goes missing, authorities suspect his illegal activities.

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

A deadly fire burns a home and leaves one man dead; investigators assume the fire was an inside job.

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

A determined son urges police to investigate the disappearance of his father.

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

The death of a Texas racecar champion leads detectives down a winding road of suspects.

The case against Aileen Wuornos, the woman branded as America's first female serial killer.

A popular construction man in a tight-knit Texas town is found gunned down in his own home.

When a Brooklyn native is shot to death in Atlanta, police have to figure out if trouble followed.

The shooting of a religious family man could be a drug-related slaying or bloody family affair.

A quiet Wisconsin town is rocked when an eccentric father of four is found dead in his basement.

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

A parking lot shooting in the dead of night leaves detectives with a long list of suspects.

An in-depth look at nurse Charles Cullen, one of America's most prolific serial killers.

Police believe a nurse may have committed up to 60 murders at a hospital in Massachusetts.

An elderly mother disappears after her troubled daughter moves back to the family farm.

A charismatic father and adored member of the local youth sports community is bludgeoned to death.

A small town church is stunned when a parishioner is murdered.

A father reports his son missing, launching an investigation that unearths a dark network of lies.

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.

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.

An affluent grandmother falls victim to an elaborate murder plot fueled by passion and greed.

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.

Georgia police commence a home invasion investigation that leads them to uncover more twists.

A tumultuous household dynamic results in the deaths of four family members.

In Gilmer, Texas, firefighters find a man's charred body while battling a vehicle fire.

The murder of a local café owner uncovers a diabolical scheme fueled by scandalous temptation.