For True Crime buffs who love the twists and turns of a criminal investigation, Oxygen True Crime has a deep library of shows that ask the provocative questions, run exhaustive investigations and look for ways that  justice always is served

An Unexpected Killer

S1, EP4 "When Hate Kills"

Police in small town Louisiana investigate the mysterious and brutal murder of a beloved neighbor with no known enemies.

An Unexpected Killer

S1, EP5 "Killer in Plain Sight"

After a college student is viciously murdered and her apartment set ablaze, police untangle a web of relationships to find a killer who's dangerously close to home.

An Unexpected Killer

S1, EP6 "New Mexico Massacre"

A couple and their special needs son are savagely murdered in rural New Mexico, leading detectives to uncover long-buried secrets in a tight-knit town.

An Unexpected Killer

S1, EP7 "Deadly Intentions"

A devoted mother about to begin a new life is murdered in her own home; detectives follow the evidence through a tangled web of relationships to unmask the killer.

An Unexpected Killer

S1, EP8 "Deadly Betrayal"

When a loving father and beloved basketball coach is murdered in Tennessee, police decode a confusing array of evidence to unveil a killer who is shockingly close to home.

An Unexpected Killer

S2, EP1 "Twisted Betrayal"

When a devoted mother with a bright future in show business is ruthlessly gunned down, a number of suspects emerges; just as detectives think they have the killer in their sights, the investigation takes a jaw-dropping turn.

An Unexpected Killer

S2, EP2 "Unseen Assassin"

A wealthy businessman and his closest friend are found shot execution-style; police have little to go on until a surprising development leads investigators to a killer no one ever suspected.

An Unexpected Killer

S2, EP3 "A Genius Murder"

When a brilliant scientist and devoted family man is found beaten to death, the evidence leads to arrests, but an astounding revelation turns the investigation on its head.

Mark of a Serial Killer

S3, EP10 "Summer of Fear"

Chaos descends on Phoenix as two serial killers compete for the media's attention and the bodies pile up faster than the police can investigate.

Mark of a Serial Killer

S3, EP11 "The Monster"

Investigators in East Baton Rouge, La., hunt for a serial murderer who carefully carves up and cuts the bodies of his victims after death.

Mark of a Serial Killer

S3, EP12 "The Bayou Strangler"

When multiple victims' bodies are dumped around Louisiana's bayou area, a task force is formed to catch a killer who police believe may have strangled over 20 men.

Mark of a Serial Killer

S3, EP13 "The Skull Crusher"

Police in Hartford, Conn., investigate a string of ruthless killings in the Asylum Hill area committed by a killer with a devastating mark that leaves his victims nearly unrecognizable.

Mark of a Serial Killer

S3, EP14 "The D.C. Sniper"

A serial sniper terrorizes the entire D.C. metro area by discreetly targeting random victims out in public and in plain sight.

Mark of a Serial Killer

S1, EP1 "Posed to Kill"

In 1990, a serial killer terrorizes the University of Florida's campus, killing five students in under four days; the Gainesville Ripper leaves behind a crime scene where all the victims have been stabbed but the females have been posed like dolls.

Mark of a Serial Killer

S1, EP2 "The Last Call Killer"

In New Jersey four bodies are found dismembered, bagged, and thrown in roadside garbage cans; the "Last Call Killer" hunted his victims openly in piano bars but no one suspected he could be hiding in plain sight, working as a local nurse.

Mark of a Serial Killer

S1, EP3 "An Eye for Murder"

Dallas police discover three women murdered with their eyes surgically removed; police believe they have a deranged doctor on the loose until two rookie cops find themselves on the trail of a man with a talent for taxidermy and a hatred for women.

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