S06 E10 — Deadly Women
Experts examine unique characteristics of female psychopathic killers, whether they are as rare as people imagine, and their crimes.

S03 E08 — Farming for a Motive
A farmhand in Rapelje, Mont., finds her co-worker murdered; as authorities look for the murderer, all the employees on the pig farm become suspects.

S03 E02 — Money Can't Buy You Love
When a local resident of Dunlap, Tenn., is picking up cans, he makes the shocking discovery of a murder; authorities piece together the crime.

S03 E07 — Mother of It All
A lively slumber party turns into a nightmare when a loving mother, her young daughter, and her daughter's friend are murdered.

S03 E13 — Dangerous Obsession
When Casey Morgan is found dead inside her home, police must unravel her dating history to figure out the killer.

S03 E11 — Serial Killer in the Making
Beloved wife and cardiac nurse Lorie Kirkley goes missing from the safety of her home in what appears to be a burglary gone wrong; several strange clues are found.

S03 E12 — Officer Down
The town of Higginson only has two full-time police officers, and one is gunned down while on duty.

S01 E05 — I Will Kill
On Friday the 13th, 14-year-old Amber Dubois vanishes; a year later, Chelsea King disappears nearby; as fear spreads, a survivor links the two-and exposes a predator hiding in plain sight.

S01 E02 — We All Go a Little Mad
On a dark and stormy night, police find a family dead in their mansion; a bloody mask lies nearby; a letter to the victim's mother hints at something darker than murder-suicide.

Two teens disappear in the remote terrain of western Utah during a brutal winter. Families fear an accident, but detectives chase false leads and elusive suspects as they unravel a far darker mystery and search for the truth.

S01 E06 — She Had No Name
A young woman vanishes after entering a patrol car; for 35 years, she's a Jane Doe; as fear and rumors consume a small town, a chilling clue under hypnosis cracks the case open-and exposes a predator no one saw coming.

S01 E02 — We All Go a Little Mad
On a dark and stormy night, police find a family dead in their mansion; a bloody mask lies nearby; a letter to the victim's mother hints at something darker than murder-suicide.

Two teens disappear in the remote terrain of western Utah during a brutal winter. Families fear an accident, but detectives chase false leads and elusive suspects as they unravel a far darker mystery and search for the truth.

S01 E06 — She Had No Name
A young woman vanishes after entering a patrol car; for 35 years, she's a Jane Doe; as fear and rumors consume a small town, a chilling clue under hypnosis cracks the case open-and exposes a predator no one saw coming.

S01 E05 — I Will Kill
On Friday the 13th, 14-year-old Amber Dubois vanishes; a year later, Chelsea King disappears nearby; as fear spreads, a survivor links the two-and exposes a predator hiding in plain sight.

S04 E01 — A Mother's Fight
Life with their beautiful daughters is a dream come true for an optometrist and his wife, but the dream soon becomes a nightmare.

S04 E03 — Sweet as Poison
A small-town cashier's life turns into a nightmare when her stepmother and stepbrothers move in, then she goes missing, leaving her family to wonder if she left to start a new life.

S25 E13 — New Years Eve Nightmare
A woman finds a young mother murdered following a festive New Year's celebration.

S25 E16 — Pretty Pink Bicycle
A young girl vanishes on a trip to the mailbox; her abandoned pink bicycle may be the key to solving the disturbing mystery.

S25 E07 — A Fairy Tale Ruined
A neighborhood garage sale ends in a hail of gunfire; police chase a cold-blooded killer who was caught in the act by surveillance cameras.

Tanya Brown, sister of Nicole Brown Simpson, explores O.J. and Nicole's relationship and the trial that followed, using Nicole's words and the photos she left behind to reveal the Brown family's experience.

S03 E05 — Killing a Champion
Drum major Robert Champion suddenly dies in the back of the Florida A&M marching band bus, mystifying authorities; an autopsy points to foul play, leading to an investigation that exposes a secret inside one of America's premiere marching bands.

S03 E06 — Stolen Cheers
Teen Alicia DeBolt goes missing shortly after making the cheer squad; police question members of the football team and fellow cheerleaders, but the truth behind this mystery is more sinister than anyone in her small Kansas town could have imagined.