An Unexpected Killer

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  • : 48
  • : 10
  • Oxygen
  • 20
  • Crime Documentary Drama

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3x1
A Predator Within
Episode overview
A Predator Within- When an athletic and popular college student is violently murdered in her apartment, police track down several surprising suspects, including one with a disturbing .. show full overview
3x2
Gold-Blooded Murder
Episode overview
A fun-loving 59-year-old man is found shot to death in his home and his beloved jewelry collection stolen, leading detectives to a long list of suspects and a killer harboring a dark secret.
3x3
Fatal Fast Food
Episode overview
A restaurant is robbed and the night manager murdered leading police to investigate suspicious coworkers, a disgruntled ex-employee and a violent serial attacker. The case goes cold, but explosive new evidence leads to a killer nobody suspected.
3x4
A Love Lost
Episode overview
When a young husband-to-be is found shot and stabbed, detectives investigate a secret affair, a kidnapping plot and a terrifying racist gang before unveiling a killer whose hidden criminal life leaves everyone stunned.
3x5
Nightmare in Shenandoah
Episode overview
A devoted mother is stabbed to death in a horrifying attack and suspicion falls on those closest to her, but while a cryptic note and a violent crime spree baffle detectives at first, they eventually track down a deranged killer no one predicted.
3x6
Deadly Desires
Episode overview
A vibrant young mother of three is murdered in the safety of her own home and investigators look to a history of troubled romances, but when the case goes cold and police can't find the killer, a phone call leads to a culprit hiding in plain sight.
3x7
Shot In The Dark
Episode overview
A brutal assassination, bitter custody dispute and a gunman's cryptic words send police scrambling on an interstate hunt to find the killer of a beloved father and husband, revealing a hair-raising plot more sinister than anyone suspected.
3x8
A Ringing Suspicion
Episode overview
When the strangling death of a young mother and bride-to-be baffles police, detectives probe a workplace grievance in search of a killer, before a cherished possession provides a link to the crime and cracks the case wide open.
3x9
The Ties That Bind
Episode overview
A wealthy trader and father of four is gunned-down at home while his family is tied up in a closet. Police dig into affairs, mob links and a missing coworker, until a chilling new lead and a taped phone call reveal a shocking plot decades later.
3x10
Wicked Night Out
Episode overview
When a young mother is found dead in a field after a night out, police scour security video to retrace a suspect's steps. The discovery of a second crime scene leads to an arrest, before hi-tech forensics reveal a truth no one expected.
3x11
A Date With Death
Episode overview
A cat-loving and recently divorced young woman dipping her toes back in the dating game is beaten and strangled in a brutal and unusual way; investigators dive into the murky world of online dating to hunt a killer who could be ready to strike again.
3x12
Twisted Intentions
Episode overview
Detectives discover the badly beaten body of a single young woman left bizarrely staged on her bed; fear in the community grows amid a rash of nearby murders until police are handed a break when a fresh look at old evidence points to the killer.
3x13
A Silent Death
Episode overview
A beloved teacher and mother of four silently vanishes in the middle of the night. A blood-soaked bedroom and horrific lakeside discovery point police to a killer close to home until mysterious tracks in the mud lead to a culprit no one suspected
3x14
Death on the Driveway
Episode overview
When a loving father of two is gunned down on his driveway, police uncover a hidden affair and workplace grudges before a nervous witness and chilling confession reveal a vicious vendetta from a killer no one expected.
3x15
A Family Affair
Episode overview
When a family that runs a beloved vet clinic is gunned down, police investigate disgruntled tenants, a pet owner with an axe to grind and an estranged son. The case stalls until detectives uncover a twisted plot by someone who seemed above suspicion.
3x16
When the Lights Go Out
Episode overview
When a young mother and beloved coworker is found savagely stabbed in her bedroom, investigators are unable to pin down a killer until secret recordings and evidence stashed in a van lead to a sinister plot and horrific confession.
3x17
Blood Runs Thick
Episode overview
Could the execution-style shooting of a well-loved, self-made couple be a tragic case of mistaken identity? Early leads take police down a path of greed and desperation until a paper trail leads to a calculated betrayal shockingly close to home.
3x18
Murder After Midnight
Episode overview
After a Texas mother is found murdered in an office bathroom, her husband admits a disturbing past while police chase down a serial killer; the case goes cold until an oversight leads to a surprise suspect and an FBI manhunt south of the border.
3x19
Trail of Evidence
Episode overview
When a devoted mother vanishes from home, a series of grisly roadside discoveries take police on a hunt for a killer; detectives follow a path of greed and desperation until a shocking twist leads to a culprit with a bizarre motive.
3x20
Murder in the Canyon
Episode overview
When an outgoing college student is gunned down, police investigate disapproving roommates, a psychic, and an infamous serial killer. However, decades-old evidence reveals a killer that original detectives had previously overlooked.