Tipster is found dead after revealing that a woman's death 16 years ago was murder.

A story of obsession that boils over into a brutal crime which takes years to bring to trial and the verdict is far from the end of the case.

The murder of 53-year-old Paul Gruber is examined, and the evidence points to Darryl Robin Kuehl, who was later convicted of the crime.

Karen and Mark Duenas had a special marriage; the teenage sweethearts managed to keep the romance alive even after raising five boys together; a perfectly ordinary night that ends in murder tests the bonds of family.

A man states that a robber shot and killed his wife while they were on the beach, but a song he downloaded makes investigators suspicious.

Detectives discover new clues left by a stalker's letter to his victim.

Keith Morrison reports on a dramatic undercover operation in Palm Beach, Fla., to save a wife and mother who has no idea she is in danger.

The body of an insurance assessor is found in a river in Tampa, Fla.; a unique murder weapon and blatant clues lead the police straight to her careless killer.

When a high school athlete is killed in a hit-and-run accident, investigators hoped tiny paint chips and shards of plastic would lead them to the driver.

Detectives in Portland, Oregon, discover a puzzling connection between the 2018 murder of chef Dan Brophy and a blog post written years earlier, titled How to Murder Your Husband.

A woman is abducted and a month later found dead, then a tip leads investigators in the right direction.

How the bombs were made leads investigators in Colorado to find the perpetrator.

When former Sen. Linda Collins of Arkansas is found fatally stabbed outside her home, detectives investigate if her murder is connected to her political career or her personal life. The victim's children speak out about the case.

DNA profiling reveals clues leading to a killer's identity 20 years later.

A murder in Australia baffles police, until they find a device intended to save lives is the only witness to the man's death.

As a loving Oklahoma family embarks on a journey to understand the romantic relationship that led to a horrific murder, the relationship's secrets also reveal the killer responsible for two other murders from a years-old cold case.

Exploring the stories through firsthand accounts told by people who are close to the crime; including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.

Family man and all-around nice guy, Trent Mallory is murdered in his sleep in rural upper Michigan; sorting through multiple suspects and motives, the police set a trap to catch his cold-hearted killer.

When a pathologist is found murdered in his home, the investigation reveals simmering jealousies and a love triangle.

When a pathologist is found murdered in his home, the investigation reveals simmering jealousies and a love triangle.

Two sisters determined to fulfill a promise investigate the mystery surrounding their mother's death.

When the body of a young woman is found in a burnt out station wagon, investigators unravel a deadly plot that leads back to a shattered marriage and two self-made millionaire brothers who feel entitled to do anything to anyone.

Peter Tobin raped and murdered Angelika Kluk in 2006, and with the help of his ex-wife, Cathy Wilson, a groundbreaking investigation unearthed more victims and revealed him to be a serial killer.

A double-homicide in a small Ohio town leads police to a family member with a grudge over $400 that leads two brothers to spiral out of control.

Pam Wright discovers in 2006 that the unidentified killer who snatched five prostitutes from the streets of Ipswich and strangled them is her own partner.

A California Granny is thought of as a Mother Teresa to the downtrodden thanks to the boarding house she runs; but when a social worker raises fears for a missing client, investigators find that Granny's carefully tended garden hides horrors.

An Army vet is found dead on his farm; it first looks like the tragic suicide of a troubled veteran, but police uncover a sprawling cover-up and two grannies whose dueling stories collide in a troubling she said, she said murder mystery.

After getting away with murder for over three decades, one of the FBI's most wanted shocks investigators when he readily admits to five murders; his son discloses a family life on the run and his attempts to step out of an evil father's shadow.

Keith Morrison recalls how a deadly high-speed chase in Montana led to a mystery, where a missionary turned into a monster and committed one of the state's most notorious crimes.

Tara Ord is a beautiful young woman with big dreams, then she vanishes without a trace; it will take years for determined cold case detectives to uncover the long buried clue that blows this case wide open.

A young man from small town Indiana heads to Japan where he falls for a beautiful woman; then, they are caught up in one of the biggest natural disasters in history.

A 911 call reporting an apartment break-in holds the key to solving the mysterious murder of a young graduate student named Katie Sepich; her case contained many twists, and her family's grit still astonishes Josh Mankiewicz.

A toddler is shot in the head and left for dead; despite the odds, she stuns everyone with her will to survive, while a detective vows to crack the case, no matter how long it takes.

When Debbie Hawk vanishes, her friends and family are left searching for answers; investigators discover that Debbie was planning to divulge secrets and wonder if she has been silenced as a result.

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; Dennis Murphy takes a fresh look at the secret Tina kept and at the demon who forced her loved ones to make an agonizing decision.

A U.S. Air Force captain who is deployed overseas for long stretches of time finds himself caught in the crossfire resulting from a love triangle at home.

When Bonnie Craig is found dead, police collect DNA but it doesn't match anyone in the system; twelve years later, there is a hit but the man is thousands of miles away; turns out, prosecutors would need more than DNA to convict a killer.

The survivor of a horrible attack is convinced the police on the case have the wrong suspect. Keith Morrison looks back on his heart-wrenching interview with the victim and her courageous quest to uncover the truth.

Newlywed Dalia Dippolito returns home from the gym to the awful news that her husband had been killed; in a case where almost nothing is as it seems, investigators want to know if Dalia is diabolical or an unwitting pawn in a hoax gone wrong.

When the dashing Gavin Smith vanishes, LA detectives are unsure if they are investigating a crime or a suicide; his wife claims he had gotten lost in drugs and flings; police wonder if the key to finding Gavin is hidden in one of those affairs.

The fatal shooting of NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, Tenn.; Andrea Canning takes a new look at the diabolical plot behind Wright's murder and his family's tireless fight for justice.

Steven B. Williams, a DJ with a golden voice, vanishes in a mystery that stretches from California to Montana; the clue to it all is wrapped in a napkin, tucked in a cabinet and hidden in a library.

He dreams of being the next Steve Jobs, a young entrepreneur who wants to change the world; but his world comes crashing down one morning with four gunshots; this is a crime of passion: a fatal triangle involving a husband, a wife and a boss.

A story of obsession that boils over into a brutal crime which takes years to bring to trial and the verdict is far from the end of the case.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; Dennis Murphy looks back on his interview with the lead suspect.

Karen and Mark Duenas had a special marriage; the teenage sweethearts managed to keep the romance alive even after raising five boys together; a perfectly ordinary night that ends in murder tests the bonds of family.

Keith Morrison reports on a dramatic undercover operation in Palm Beach, Fla., to save a wife and mother who has no idea she is in danger.

Keith Morrison revisits a story where he says unusual would be putting it mildly; at first it appeared to be a drowning accident during a romantic sunset cruise; but soon Idaho investigators suspected something more sinister.

Detectives in Portland, Oregon, discover a puzzling connection between the 2018 murder of chef Dan Brophy and a blog post written years earlier, titled How to Murder Your Husband.

When former Sen. Linda Collins of Arkansas is found fatally stabbed outside her home, detectives investigate if her murder is connected to her political career or her personal life. The victim's children speak out about the case.

After filming wraps on an indie horror movie, the cast members learn their lead actress is not who she says she is and has been charged with killing her uncle; it's a story Keith Morrison can't forget, one where family drama takes center stage.

Exploring the stories through firsthand accounts told by people who are close to the crime; including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.

Andrea Canning recalls a case in which investigators set up an elaborate sting operation to stop a murder-for-hire plot.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; interviews about the prominent family's dark secrets.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; interviews about the prominent family's dark secrets.

A charismatic pastor's dark secrets come to light after his wife's mysterious death; the case shattered a congregats and exposes the cost of their unshakable trust.

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.

When the body of a young woman is found in a burnt out station wagon, investigators unravel a deadly plot that leads back to a shattered marriage and two self-made millionaire brothers who feel entitled to do anything to anyone.

A loving, single mother of two is the victim of a bizarre murder, leading detectives to investigate a number of suspects.

A double-homicide in a small Ohio town leads police to a family member with a grudge over $400 that leads two brothers to spiral out of control.

Two men fishing east of Nashville, Tenn., on April 28,1982, discover a decaying body, later identified as Gene Stump, but only an exhumation will ensure justice is served when detectives find a suspect.

A California Granny is thought of as a Mother Teresa to the downtrodden thanks to the boarding house she runs; but when a social worker raises fears for a missing client, investigators find that Granny's carefully tended garden hides horrors.

Police respond to a fire at a horse track in upstate New York and are shocked to find a groomer has taken her own life; years later, another groomer's eerily similar death prompts investigators to request a second autopsy and uncover the truth.

An Army vet is found dead on his farm; it first looks like the tragic suicide of a troubled veteran, but police uncover a sprawling cover-up and two grannies whose dueling stories collide in a troubling she said, she said murder mystery.

When a Texas police detective finds his wife dead from a gunshot wound, his fellow detectives work to uncover if her death was an accident, a suicide, or something more sinister.

Keith Morrison recalls how a deadly high-speed chase in Montana led to a mystery, where a missionary turned into a monster and committed one of the state's most notorious crimes.

First responders are called to the fatal shooting of a 28-year-old woman; while her estranged husband claims their bizarre sex game ended in suicide, investigators and the victim's family believe the case to be a cold-blooded murder.

When a missing man's body is found, his wife finds herself under a microscope; police want to solve the case before it goes cold.

A 911 call reporting an apartment break-in holds the key to solving the mysterious murder of a young graduate student named Katie Sepich; her case contained many twists, and her family's grit still astonishes Josh Mankiewicz.

When men who helped a "damsel in distress" turn up dead, authorities investigate.

Devoted to raising her daughter's child, a loving grandmother is found executed in her own home; police unfold an ongoing custody battle which leads to suspicions towards those nearest to her grandchild.

When Tina Sandoval disappears, her parents and loved ones spend years searching for her; Dennis Murphy takes a fresh look at the secret Tina kept and at the demon who forced her loved ones to make an agonizing decision.

A young man ends up dead while out hunting; investigating whether this is a case of an accidental shooting, or if there is a more sinister explanation.

An Arizona socialite makes a gruesome discovery, which leads local law enforcement to ask questions about her troubled marriage; she claims she found a man dead, but police have reason to believe otherwise.

The survivor of a horrible attack is convinced the police on the case have the wrong suspect. Keith Morrison looks back on his heart-wrenching interview with the victim and her courageous quest to uncover the truth.

A young man is brutally murdered, and a woman is found covered in blood just hours later; she is adamant that she is innocent, and later a twist in the case shocks everyone involved.

When a beloved grandfather is found shot dead in his Florida home, detectives fear his missing ex-wife is also in danger; as they uncover a tangled web of romance, infidelity and betrayal, new questions arise about her involvement in the murder.

The fatal shooting of NBA star and hometown hero Lorenzen Wright sends shockwaves through the city of Memphis, Tenn.; Andrea Canning takes a new look at the diabolical plot behind Wright's murder and his family's tireless fight for justice.

A father of four vanishes days before Christmas; what authorities believe to be a bond violation, unfolds into something evil.

Numerous patients at a Texas dialysis treatment center have gone into cardiac arrest, resulting in five deaths in one month; investigators work with the Centers for Disease Control to expose a chilling connection between the unexplained tragedies.

When a woman is found dead in her SUV, the investigation into her murder reveals a tangled web of sex and lies; Dennis Murphy looks back on his interview with the lead suspect.

After a father is found dead in his family's Florida mansion, what at first appears to be suicide turns into a complex murder mystery where a mother's cryptic words and a son's suspicious behavior suggest either could be hiding a deadly grudge.

When a woman survives an alleged assault in the New Mexico desert and her purported attacker is found stabbed to death, investigators must get to the bottom of a bizarre murder plot driven by one suspect's obsession with the occult.

Keith Morrison revisits a story where he says unusual would be putting it mildly; at first it appeared to be a drowning accident during a romantic sunset cruise; but soon Idaho investigators suspected something more sinister.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta; in exclusive prison interviews, the killer couple each share their version of events.

When a young soldier goes missing two days after his wedding, authorities fear the worst has occurred in their small Ohio town; rumors of a sordid affair lead to a shocking betrayal that ended in not one, but two horrific crimes.

After filming wraps on an indie horror movie, the cast members learn their lead actress is not who she says she is and has been charged with killing her uncle; it's a story Keith Morrison can't forget, one where family drama takes center stage.

Minnesota police hunt for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness; no one can identify him until one woman survives a brutal attack.

Andrea Canning recalls a case in which investigators set up an elaborate sting operation to stop a murder-for-hire plot.

In the 1990s, Louisiana is terrorized by multiple serial killers; the Zachary Police Department discovers the key to solving their cases when a pattern emerges with personal items missing from each local victim.

The family members of murdered California entrepreneur Chris Smith speak out; interviews with investigators, Smith's former colleague, and prosecutor Matt Murphy.

The family members of murdered California entrepreneur Chris Smith speak out; interviews with investigators, Smith's former colleague, and prosecutor Matt Murphy.

When 18-year-old Anjelica Hadsell disappears, the investigation uncovers a sinister betrayal.

Detectives in Portland, Ore., discover a puzzling connection between the 2018 murder of chef Dan Brophy and a blog post written years earlier titled, "How to Murder Your Husband.".

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.

Firefighters make a grisly discovery while responding to a house fire in a Toronto suburb; as a family searches for answers, investigators launch an elaborate undercover sting that reveals a devious murder-for-hire plot and the ultimate betrayal.

A loving, single mother of two is the victim of a bizarre murder, leading detectives to investigate a number of suspects.

Ashlea Harris has no shortage of admirers, so when she is found dead after a suspicious fire consumes her apartment, police are baffled; the fire is no accident but the clues to who killed Ashlea may be up in smoke.

Two men fishing east of Nashville, Tenn., on April 28,1982, discover a decaying body, later identified as Gene Stump, but only an exhumation will ensure justice is served when detectives find a suspect.

Brandy Daniels believes someone is stalking her, then the single mother is found slumped over in her car, shot dead; investigators spend years navigating the twists and turns searching for her killer.

Police respond to a fire at a horse track in upstate New York and are shocked to find a groomer has taken her own life; years later, another groomer's eerily similar death prompts investigators to request a second autopsy and uncover the truth.

Debra Newell thought she found Mr. Right but her daughters sensed something wrong about John Meehan; they started digging into his past and their search for answers exposed a dangerous con man.

When a Texas police detective finds his wife dead from a gunshot wound, his fellow detectives work to uncover if her death was an accident, a suicide, or something more sinister.

Heidy and Conrad Truman are an enviable couple with a bright future until Heidy is found shot; in the aftermath, fingers are pointed but could be aimed at an innocent person.

First responders are called to the fatal shooting of a 28-year-old woman; while her estranged husband claims their bizarre sex game ended in suicide, investigators and the victim's family believe the case to be a cold-blooded murder.

The execution of successful businesswoman and mother Makeva Jenkins sparks an intense investigation, but unveiling the masked gunman requires unmasking a litany of suspects in hopes of exposing a killer relationship.

When a missing man's body is found, his wife finds herself under a microscope; police want to solve the case before it goes cold.

Married for 33 years, a respected high school math teacher and his wife head to Las Vegas to celebrate her 50th birthday; when Evie Watson disappears, however, police from two states join forces and play a game of cat and mouse to catch her killer.

When men who helped a "damsel in distress" turn up dead, authorities investigate.

The last precious moments of rising star Maple Batalia are captured on a security camera before she's gunned down at her college campus in British Columbia; a community grieves as a mother's anguished pleas for justice capture national attention.

Devoted to raising her daughter's child, a loving grandmother is found executed in her own home; police unfold an ongoing custody battle which leads to suspicions towards those nearest to her grandchild.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

A young man ends up dead while out hunting; investigating whether this is a case of an accidental shooting, or if there is a more sinister explanation.

An Arizona socialite makes a gruesome discovery, which leads local law enforcement to ask questions about her troubled marriage; she claims she found a man dead, but police have reason to believe otherwise.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

A young man is brutally murdered, and a woman is found covered in blood just hours later; she is adamant that she is innocent, and later a twist in the case shocks everyone involved.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

When a beloved grandfather is found shot dead in his Florida home, detectives fear his missing ex-wife is also in danger; as they uncover a tangled web of romance, infidelity and betrayal, new questions arise about her involvement in the murder.

After a talented artist and musician goes missing, the investigation into his disappearance leads to a gruesome discovery in a historic Philly cemetery, revealing a sinister series of events.

A father of four vanishes days before Christmas; what authorities believe to be a bond violation, unfolds into something evil.

When a beloved North Philadelphia school teacher is ambushed in a Dunkin' Donuts drive-thru, detectives uncover a deadly plot involving jealousy, deceit, and revenge.

Numerous patients at a Texas dialysis treatment center have gone into cardiac arrest, resulting in five deaths in one month; investigators work with the Centers for Disease Control to expose a chilling connection between the unexplained tragedies.

The investigation of a bridal shop supervisor's violent murder leads detectives to Philly's music scene to reveal a hit list, an ultimatum, and an abusive musical mastermind.

After a father is found dead in his family's Florida mansion, what at first appears to be suicide turns into a complex murder mystery where a mother's cryptic words and a son's suspicious behavior suggest either could be hiding a deadly grudge.

The killer isn't hiding… they're among us! Host Alan Cumming unveils a chilling first look at Oxygen's new show The Killer Among Us.

When a Colorado mother vanishes, the detective investigating her disappearance discovers a connection to a previous assault; the survivor of that attack recounts her terrifying ordeal.

When a woman survives an alleged assault in the New Mexico desert and her purported attacker is found stabbed to death, investigators must get to the bottom of a bizarre murder plot driven by one suspect's obsession with the occult.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta; in exclusive prison interviews, the killer couple each share their version of events.

The investigation of a bridal shop supervisor's violent murder leads detectives to Philly's music scene to reveal a hit list, an ultimatum, and an abusive musical mastermind.

When a young soldier goes missing two days after his wedding, authorities fear the worst has occurred in their small Ohio town; rumors of a sordid affair lead to a shocking betrayal that ended in not one, but two horrific crimes.

A botched bank robbery and bomb-clad hostage lead Erie detectives through a scavenger hunt that starts with a pizza delivery, ends with multiple victims, and is concocted by a deranged perpetrator who has plans to kill again.

Minnesota police hunt for a killer caller who confesses to a string of murders in a chilling, high-pitched voice, begging for forgiveness; no one can identify him until one woman survives a brutal attack.

After a former fire department volunteer dies in a house fire, inexplicable findings on scene, prison informants, and forged documents expose a duplicitous scheme, driven by insatiable greed, that began more than two years prior.

In the 1990s, Louisiana is terrorized by multiple serial killers; the Zachary Police Department discovers the key to solving their cases when a pattern emerges with personal items missing from each local victim.

An arrogant cosmetic surgeon operating out of a basement permanently scars and kills patients, then shocks detectives by attempting to murder a loved one.

More than two decades after a woman is murdered in what appears to be a burglary gone wrong, a detective finds information that unlocks the mystery of what actually happened.

More than two decades after a woman is murdered in what appears to be a burglary gone wrong, a detective finds information that unlocks the mystery of what actually happened.

The investigation into a newlywed's murder starts with a widow, ends with a possible serial killer.

Detectives in Portland, Ore., discover a puzzling connection between the 2018 murder of chef Dan Brophy and a blog post written years earlier titled, "How to Murder Your Husband.".

Firefighters make a grisly discovery while responding to a house fire in a Toronto suburb; as a family searches for answers, investigators launch an elaborate undercover sting that reveals a devious murder-for-hire plot and the ultimate betrayal.

After Todd Chance is murdered, police follow a trail of video evidence to track down their suspect; Andrea Canning recalls a particularly revealing interview, including an eye-popping detail.

Ashlea Harris has no shortage of admirers, so when she is found dead after a suspicious fire consumes her apartment, police are baffled; the fire is no accident but the clues to who killed Ashlea may be up in smoke.

Brandy Daniels believes someone is stalking her, then the single mother is found slumped over in her car, shot dead; investigators spend years navigating the twists and turns searching for her killer.

When an esteemed California pastor is found executed in an almond orchard, investigators turn to his complex love life for answers; allegations of blackmail are exposed, and a vindictive conspiracy is ultimately brought to light.

Debra Newell thought she found Mr. Right but her daughters sensed something wrong about John Meehan; they started digging into his past and their search for answers exposed a dangerous con man.

When a crimespree leaves five dead, South Carolina authorities kickstart a multi-state investigation to capture a desperate couple on the run; the case grows more complicated whenpolice are faced with conflicting accounts of the murders.

Heidy and Conrad Truman are an enviable couple with a bright future until Heidy is found shot; in the aftermath, fingers are pointed but could be aimed at an innocent person.

After a young mother is murdered in broad daylight, Texas authorities are on a hunt for a masked gunman; the ensuing investigation uncovers a bitter custody battle and a vicious plot born of obsession.

The execution of successful businesswoman and mother Makeva Jenkins sparks an intense investigation, but unveiling the masked gunman requires unmasking a litany of suspects in hopes of exposing a killer relationship.

A welfare check confirms the worst when a woman is found brutally murdered on her couch; the ensuing investigation leads authorities from Oklahoma to Arkansas where conflicting stories of a crime motivated by greed and jealousy are uncovered.

Married for 33 years, a respected high school math teacher and his wife head to Las Vegas to celebrate her 50th birthday; when Evie Watson disappears, however, police from two states join forces and play a game of cat and mouse to catch her killer.

When a missing man's bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth; the case hits a standstill until information about the victim's car comes to light and reveals a toxic romance.

The last precious moments of rising star Maple Batalia are captured on a security camera before she's gunned down at her college campus in British Columbia; a community grieves as a mother's anguished pleas for justice capture national attention.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta; in exclusive prison interviews, the killer couple each share their version of events.

When a patrol officer discovers a dead body in the back of a taxi, detectives must rely on a trail of digital breadcrumbs and a mysterious passenger to track the killer.

When a young soldier goes missing two days after his wedding, authorities fear the worst has occurred in their small Ohio town; rumors of a sordid affair lead to a shocking betrayal that ended in not one, but two horrific crimes.

When a Philly radio personality is killed in her lavish Shore home, the years-long investigation reveals an undercover informant, an intricate murder-for-hire plot, and a vast trafficking conspiracy.

A house fire in a small town in Illinois ignites a homicide investigation after a mother's body is found in her bedroom; as police search for answers, a teenager's secret exposes a connection and a couple motivated by desperation.

After a successful Korean-American business owner is killed during a home invasion, detectives believe his murder could be tied to a string of Philly crimes against businesses, until they uncover that the mastermind is someone much closer to home.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

After a talented artist and musician goes missing, the investigation into his disappearance leads to a gruesome discovery in a historic Philly cemetery, revealing a sinister series of events.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

When a beloved North Philadelphia school teacher is ambushed in a Dunkin' Donuts drive-thru, detectives uncover a deadly plot involving jealousy, deceit, and revenge.

After a 911 hang-up, Pasco, Wash., police report to the caller's address and discover a beloved grandmother has been fatally shot; detectives will combat self-defense claims as evidence of a greedy scheme comes to light.

The investigation of a bridal shop supervisor's violent murder leads detectives to Philly's music scene to reveal a hit list, an ultimatum, and an abusive musical mastermind.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

The killer isn't hiding… they're among us! Host Alan Cumming unveils a chilling first look at Oxygen's new show The Killer Among Us.

When a Colorado mother vanishes, the detective investigating her disappearance discovers a connection to a previous assault; the survivor of that attack recounts her terrifying ordeal.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

An aspiring young artist from Virginia is reported missing by his family. When his body is found weeks later, investigators must delve into his tumultuous family life and uncover an eyewitness who reveals the lies and deceit that led to his murder.

The investigation of a bridal shop supervisor's violent murder leads detectives to Philly's music scene to reveal a hit list, an ultimatum, and an abusive musical mastermind.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

A botched bank robbery and bomb-clad hostage lead Erie detectives through a scavenger hunt that starts with a pizza delivery, ends with multiple victims, and is concocted by a deranged perpetrator who has plans to kill again.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

After a former fire department volunteer dies in a house fire, inexplicable findings on scene, prison informants, and forged documents expose a duplicitous scheme, driven by insatiable greed, that began more than two years prior.

Dawn Sandoval is hoping to start over after a recent divorce, but as soon as she dives into the dating world she vanishes into thin air, leaving behind a mystery in the New Mexico desert that ends with a horrifying discovery.

An arrogant cosmetic surgeon operating out of a basement permanently scars and kills patients, then shocks detectives by attempting to murder a loved one.

Police investigate when the seemingly storybook romance between a football player and the homecoming queen ends in a death.

Police investigate when the seemingly storybook romance between a football player and the homecoming queen ends in a death.

Law enforcement officers investigate a string of deadly shootings targeting women in the border city of Laredo, Texas.

After Tahereh Ghassemi disappears from the Louisiana home she shares with her adult son, detectives discover that she'd recently come into a great deal of money; the investigation reveals an astonishing plot with international implications.

After trumpet player Scott Sessions fails to show up for a scheduled gig, his family learns his body was abandoned in the remote Colorado Rockies; as the investigation narrows in on two suspects, a second murder catches police by surprise.

After Todd Chance is murdered, police follow a trail of video evidence to track down their suspect; Andrea Canning recalls a particularly revealing interview, including an eye-popping detail.

When an esteemed California pastor is found executed in an almond orchard, investigators turn to his complex love life for answers; allegations of blackmail are exposed, and a vindictive conspiracy is ultimately brought to light.

When a crimespree leaves five dead, South Carolina authorities kickstart a multi-state investigation to capture a desperate couple on the run; the case grows more complicated whenpolice are faced with conflicting accounts of the murders.

After a young mother is murdered in broad daylight, Texas authorities are on a hunt for a masked gunman; the ensuing investigation uncovers a bitter custody battle and a vicious plot born of obsession.

A welfare check confirms the worst when a woman is found brutally murdered on her couch; the ensuing investigation leads authorities from Oklahoma to Arkansas where conflicting stories of a crime motivated by greed and jealousy are uncovered.

When a missing man's bullet-riddled body is found off the side of a road, police must dig into his complicated past to uncover the truth; the case hits a standstill until information about the victim's car comes to light and reveals a toxic romance.

When a shocking crime is committed in broad daylight that leaves a young man dead on the street, the investigation uncovers a personal vendetta; in exclusive prison interviews, the killer couple each share their version of events.

When a young soldier goes missing two days after his wedding, authorities fear the worst has occurred in their small Ohio town; rumors of a sordid affair lead to a shocking betrayal that ended in not one, but two horrific crimes.

A house fire in a small town in Illinois ignites a homicide investigation after a mother's body is found in her bedroom; as police search for answers, a teenager's secret exposes a connection and a couple motivated by desperation.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

After a 911 hang-up, Pasco, Wash., police report to the caller's address and discover a beloved grandmother has been fatally shot; detectives will combat self-defense claims as evidence of a greedy scheme comes to light.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

An aspiring young artist from Virginia is reported missing by his family. When his body is found weeks later, investigators must delve into his tumultuous family life and uncover an eyewitness who reveals the lies and deceit that led to his murder.

After a teen girl is found dead in the backseat of her own car, detectives focus on the complicated relationships between the victim and the two girls who discovered her body. A third suspect emerges due to a suspicious injury.

With just over one hundred residents, the farming village of Colon, Nebraska is built on trust; when county treasurer Sharron Erickson is found murdered in her town garage, Main Street becomes a crime scene where no one can trust their neighbor.

Dawn Sandoval is hoping to start over after a recent divorce, but as soon as she dives into the dating world she vanishes into thin air, leaving behind a mystery in the New Mexico desert that ends with a horrifying discovery.

Insiders close to an Idaho woman accused of murdering her husband speak out for the first time on television; new details emerge, including never-before-seen bodycam and jailhouse footage.

Insiders close to an Idaho woman accused of murdering her husband speak out for the first time on television; new details emerge, including never-before-seen bodycam and jailhouse footage.

When young mother and paramedic Annamarie Cochrane Rintala is found dead at the bottom of her basement stairs, it takes four trials and 13 years before justice is served.