After a young California father is ambushed on the steps of his own home, Santa Clara detectives uncover a complex murder plot that ultimately leads them to an unexpected mastermind who's been hiding in plain sight all along.

A home invasion turns deadly on Easter night; as Ohio authorities hunt for the assailant, they discover that the attack may not have been as random as first thought.

Eleven years after Connecticut mother Donna Palomba is raped in her home, investigators finally track down her attacker; Donna speaks out about the case, including her fight to keep her assailant from walking free.

A love triangle leads to years of stalking, property destruction, threats and murder.

Convicted of killing two taxi drivers, Chaz Blackshear returns nine years later to share new details in what led to a brutal double murder; his accomplice and then-girlfriend, Danielle Hudson, reveals her role in the crimes for the first time.

A murder outside Pleasantville, Iowa, divides a family and forces one man to take the investigation into his own hands.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

A former marine who once was the hero for a woman in an abusive marriage may have let his desire to help go too far.

Mexican drug lord El Chapo evades authorities for over a decade, but one man is determined to catch the kingpin; former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

A murder outside Pleasantville, Iowa, divides a family and forces one man to take the investigation into his own hands.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

A former marine who once was the hero for a woman in an abusive marriage may have let his desire to help go too far.

Mexican drug lord El Chapo evades authorities for over a decade, but one man is determined to catch the kingpin; former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

An investigation into the disappearance of a devoted father leads Arkansas police to a shocking crime scene, the search for answers reveals gang threats, and a killer that's willing to go to great lengths to escape justice.

When a prominent insurance salesman is gunned down on a country road in Kinston, North Carolina, a 20-year-old secret comes to light and casts a shadow on a killer's flawless reputation.

When an airman from Lee, Maine vanishes only four months into his marriage to a country girl from West Texas, it triggers a multi-agency investigation that exposes a darker side to southern hospitality.

A three-year feud over land and morals reaches a bloody conclusion for a young mother in Miami.

In Carmel Canyon, Calif., wealthy neighbors get into disputes over everything from shared roads and bridges to the upkeep of their respective properties until anger boils over and the ongoing feud is resolved with fatal gunfire.

Enmity, treachery and gunfire ensue when a man rejects the romantic advances of his next door neighbor.

An investigation into the disappearance of a devoted father leads Arkansas police to a shocking crime scene, the search for answers reveals gang threats, and a killer that's willing to go to great lengths to escape justice.

When a prominent insurance salesman is gunned down on a country road in Kinston, North Carolina, a 20-year-old secret comes to light and casts a shadow on a killer's flawless reputation.

When an airman from Lee, Maine vanishes only four months into his marriage to a country girl from West Texas, it triggers a multi-agency investigation that exposes a darker side to southern hospitality.

A murder outside Pleasantville, Iowa, divides a family and forces one man to take the investigation into his own hands.

When a young mother disappears after leaving her infant in the care of her local pastor and his wife, Florida detectives search for her for five years, uncovering a web of secrets and lies.

When a young Army medic based at Ft. Bragg, N.C., goes missing, police can't solve the case despite having a suspect until an unorthodox private investigator steps in to help.

A former marine who once was the hero for a woman in an abusive marriage may have let his desire to help go too far.

Mexican drug lord El Chapo evades authorities for over a decade, but one man is determined to catch the kingpin; former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

Rapper Meek Mill interview; exploring controversies surrounding the criminal justice system, including the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse and more.

A recent law school graduate in Georgia who has a promising future disappears without a trace.

A father in Hawaii tackles setback after setback in his fight for justice for his murdered daughter.

With six people killed and a city under siege, a retired detective tries to figure out how the killings are linked.

An in-depth look at the journalists who exposed the dangers of cult leader Reverend Jim Jones; interviews with witnesses to murders carried out by Jones' followers.

Rapper Meek Mill interview; exploring controversies surrounding the criminal justice system, including the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse and more.

A recent law school graduate in Georgia who has a promising future disappears without a trace.

A father in Hawaii tackles setback after setback in his fight for justice for his murdered daughter.

With six people killed and a city under siege, a retired detective tries to figure out how the killings are linked.

An in-depth look at the journalists who exposed the dangers of cult leader Reverend Jim Jones; interviews with witnesses to murders carried out by Jones' followers.

When a small-town preacher is hospitalized with a mysterious illness, North Carolina police uncover a string of suspicious deaths centered around a Burlington woman who has a hidden dark side.

The peaceful life of a retired North Carolina couple is shattered when a husband's body is found in his own garage, leaving investigators to sort out fact from fiction with the help of his wife.

After a bizarre account of suspected false identity is reported, authorities uncover a long history of an evasive criminal and launch a nationwide hunt to catch a killer who uses Southern charm as a weapon of deception.

When a man moves to Canyon Country, Calif., he finds himself embroiled in a bizarre and increasingly acrimonious 8-year feud with a neighbor that terminates with blasts from a shotgun.

A family moves into a Minnesota lake house, then a dispute with a neighbor over water access escalates until it leads to a bloody resolution.

In Elyria, Ohio, two neighboring families live in harmony for decades, then their friendly coexistence devolves into acrimony, accusations and violence.

When a small-town preacher is hospitalized with a mysterious illness, North Carolina police uncover a string of suspicious deaths centered around a Burlington woman who has a hidden dark side.

The peaceful life of a retired North Carolina couple is shattered when a husband's body is found in his own garage, leaving investigators to sort out fact from fiction with the help of his wife.

After a bizarre account of suspected false identity is reported, authorities uncover a long history of an evasive criminal and launch a nationwide hunt to catch a killer who uses Southern charm as a weapon of deception.

Rapper Meek Mill interview; exploring controversies surrounding the criminal justice system, including the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse and more.

A recent law school graduate in Georgia who has a promising future disappears without a trace.

A father in Hawaii tackles setback after setback in his fight for justice for his murdered daughter.

With six people killed and a city under siege, a retired detective tries to figure out how the killings are linked.

An in-depth look at the journalists who exposed the dangers of cult leader Reverend Jim Jones; interviews with witnesses to murders carried out by Jones' followers.

A popular high school student is found murdered in her bed; two students help police solve the case.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

When a soldier who just returned from Afghanistan is gunned down on the side of the road in Kentucky; detectives quickly uncover a secret that could solve the case.

When a young woman is found dead near a soccer field in Indiana, detectives try to piece together a puzzle that leads them to an unexpected suspect.

A young woman's murder remains unsolved until someone comes forward to reveal her own harrowing story.

A popular high school student is found murdered in her bed; two students help police solve the case.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

When a soldier who just returned from Afghanistan is gunned down on the side of the road in Kentucky; detectives quickly uncover a secret that could solve the case.

When a young woman is found dead near a soccer field in Indiana, detectives try to piece together a puzzle that leads them to an unexpected suspect.

A young woman's murder remains unsolved until someone comes forward to reveal her own harrowing story.

After a hardworking mother is trapped and killed in a California house fire, investigators sift through multiple theories to figure out who could have ignited the deadly blaze.

As Pennsylvania police investigate the gruesome murder of a grandmother in her own home, detectives sort through a web of lies and nefarious activities before ultimately going toe to toe with a cold-blooded killer.

A family man is gunned down on the side of the road in a small town in Texas, and detectives unearth a perpetrator who's hiding more than one shocking skeleton in the closet.

When family members fall ill from deadly poison found in their soda, investigators turn their attention to the quiet couple who live next door.

A couple moves to an idyllic California beach town and hits it off with their new neighbors, then one of the wives descends into drugs and madness, terrorizing the other.

When neighbors stand up to a bully after his dog bites their son, a grudge he's been nursing for decades finally explodes into a frenzy of violence.

After a hardworking mother is trapped and killed in a California house fire, investigators sift through multiple theories to figure out who could have ignited the deadly blaze.

As Pennsylvania police investigate the gruesome murder of a grandmother in her own home, detectives sort through a web of lies and nefarious activities before ultimately going toe to toe with a cold-blooded killer.

A family man is gunned down on the side of the road in a small town in Texas, and detectives unearth a perpetrator who's hiding more than one shocking skeleton in the closet.

A popular high school student is found murdered in her bed; two students help police solve the case.

A murder case considered closed by North Dakota detectives is suddenly reopened when a confidential informant comes forward with a tip about an unlikely suspect.

When a soldier who just returned from Afghanistan is gunned down on the side of the road in Kentucky; detectives quickly uncover a secret that could solve the case.

When a young woman is found dead near a soccer field in Indiana, detectives try to piece together a puzzle that leads them to an unexpected suspect.

A young woman's murder remains unsolved until someone comes forward to reveal her own harrowing story.

The parents of a missing South Carolina woman speak out about her disappearance.

When two tragic deaths occur within one week of each other in a wealthy city in California, families begin to wonder what happened inside a beachfront mansion.

Michele and Lloyd Neurauter were devoted to their three daughters, even after divorce; when Michele is found dead in her home, police suspect suicide, but then they uncover a deadly betrayal too twisted to be true.

A soon-to-be bride is caught in the middle of a twisted murder plot that has detectives questioning if she played a role in it.

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers.

The parents of a missing South Carolina woman speak out about her disappearance.

When two tragic deaths occur within one week of each other in a wealthy city in California, families begin to wonder what happened inside a beachfront mansion.

Michele and Lloyd Neurauter were devoted to their three daughters, even after divorce; when Michele is found dead in her home, police suspect suicide, but then they uncover a deadly betrayal too twisted to be true.

A soon-to-be bride is caught in the middle of a twisted murder plot that has detectives questioning if she played a role in it.

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers.

Small town McNeil, Ark., is grief-stricken after a retired sheriff is suddenly shot to death; when the case appears to be closed, a killer strikes again, and another local hero is struck down.

When a beloved grandfather in Federal Heights, Colo., vanishes without a trace, the ensuing investigation exposes disturbing secrets that were lurking behind closed doors as police body cam footage reveals the deadly truth.

Sleepy Seadrift, Texas, is unnerved by the death of a local landscaper after evidence at the scene of an apparent hit-and-run points to a deceptive killer with a dangerous past.

When a freewheeling family moves from California to the conservative enclave of Leesburg, Va., they get on the wrong side of one of their neighbors, and the conflict escalates until bullets fly and blood flows in the street.

Seeking to make a fresh start in Las Vegas, a teacher and her son find themselves the targets of harassment and escalating intimidation by the woman who lives next door.

In Vancouver, Wash., a young couple's neighbor violates the strict codes of community conduct in their housing development.

Small town McNeil, Ark., is grief-stricken after a retired sheriff is suddenly shot to death; when the case appears to be closed, a killer strikes again, and another local hero is struck down.

When a beloved grandfather in Federal Heights, Colo., vanishes without a trace, the ensuing investigation exposes disturbing secrets that were lurking behind closed doors as police body cam footage reveals the deadly truth.

Sleepy Seadrift, Texas, is unnerved by the death of a local landscaper after evidence at the scene of an apparent hit-and-run points to a deceptive killer with a dangerous past.

The parents of a missing South Carolina woman speak out about her disappearance.

When two tragic deaths occur within one week of each other in a wealthy city in California, families begin to wonder what happened inside a beachfront mansion.

Michele and Lloyd Neurauter were devoted to their three daughters, even after divorce; when Michele is found dead in her home, police suspect suicide, but then they uncover a deadly betrayal too twisted to be true.

A soon-to-be bride is caught in the middle of a twisted murder plot that has detectives questioning if she played a role in it.

When the mysterious death of a 23-year-old mother in New Mexico goes unsolved, her family searches for answers.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

The homicide of private first class soldier and young mother Karlyn Ramirez; a glimpse into the FBI's crime lab and an in-depth look at how multiple agencies uncovered a plot that spanned several states and prompted suspicions of espionage.

Years after the kidnapping of Amanda Lindhout, secret agents put a daring undercover sting into action.

A teenager is convicted of encouraging her boyfriend to kill himself; exclusive interviews with those on both sides of the case.

The friends of a father from Georgia accused of murdering his ex-wife come together to prove he is innocent, while prosecutors count on his young children to testify against him.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

The homicide of private first class soldier and young mother Karlyn Ramirez; a glimpse into the FBI's crime lab and an in-depth look at how multiple agencies uncovered a plot that spanned several states and prompted suspicions of espionage.

Years after the kidnapping of Amanda Lindhout, secret agents put a daring undercover sting into action.

A teenager is convicted of encouraging her boyfriend to kill himself; exclusive interviews with those on both sides of the case.

The friends of a father from Georgia accused of murdering his ex-wife come together to prove he is innocent, while prosecutors count on his young children to testify against him.

The deadly beating of a young man in West Liberty, Iowa, sits unsolved for 25 years, until cold case detectives are approached by an unexpected witness.

A former ladies' man has a change of heart when he falls for a pious day care worker, but when his body is found floating in a creek, detectives discover there's more to their relationship than meets the eye.

The American dream of a hard-working immigrant is cut short when he is violently murdered with a hatchet in the streets of a Las Vegas suburb; investigators sift through lies and follow a bloody trail to uncover the shocking truth.

In Oregon, a couple learns their new neighbor has a deadly past, then relations sour, tempers flare and blood is spilled.

In Euclid, Ohio, a teenage boy develops a crush on the girl next door but gets rebuffed, setting the stage for murder.

In Alden, N.Y., siblings who live next door to each other get into a conflict when a brother returns home; soon, they are at each other's throats and their family feud comes to a fiery end.

The deadly beating of a young man in West Liberty, Iowa, sits unsolved for 25 years, until cold case detectives are approached by an unexpected witness.

A former ladies' man has a change of heart when he falls for a pious day care worker, but when his body is found floating in a creek, detectives discover there's more to their relationship than meets the eye.

The American dream of a hard-working immigrant is cut short when he is violently murdered with a hatchet in the streets of a Las Vegas suburb; investigators sift through lies and follow a bloody trail to uncover the shocking truth.

When a hard-charging boss in Arizona is shot to death, police uncover a complex web of bruised egos in his professional life and a trail of broken hearts in his personal life.

The homicide of private first class soldier and young mother Karlyn Ramirez; a glimpse into the FBI's crime lab and an in-depth look at how multiple agencies uncovered a plot that spanned several states and prompted suspicions of espionage.

Years after the kidnapping of Amanda Lindhout, secret agents put a daring undercover sting into action.

A teenager is convicted of encouraging her boyfriend to kill himself; exclusive interviews with those on both sides of the case.

The friends of a father from Georgia accused of murdering his ex-wife come together to prove he is innocent, while prosecutors count on his young children to testify against him.

A woman walks into her home to find her daughter covered in blood; a single drop of blood is the key to finding the attacker.

A pilot flees following a plane crash, becomes a fugitive and lives a double life for decades.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

A woman walks into her home to find her daughter covered in blood; a single drop of blood is the key to finding the attacker.

A pilot flees following a plane crash, becomes a fugitive and lives a double life for decades.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

An investigation into the murder of a New York businessman zeroes in on a family member whose plush lifestyle launches a tabloid frenzy; a closer look reveals the suspect's inner demons calling the greedy motive into question.

When a successful Texas lawyer and his wife are executed while sleeping in their bed, Houston police team up with a private investigator, who gets dangerously close to a killer, to uncover a greedy mastermind who proves that privilege can be deadly.

The truth behind the brutal deaths of a prominent and wealthy couple in Libertyville, Ill., remains dormant until 15 years later when a new police task force exposes a murderer who let money remove the sense of consequence.

In Longboat Key, Fla., a psychologist discovers her neighbor may be a violent criminal and vows to protect herself - with devastating consequences.

In Tamarac, Fla., a new boy becomes friends with the most unruly youngsters in his neighborhood, leading to bad blood that boils over on Halloween and comes to a horrific end.

In Dayton, Ohio, a woman welcomes a young family when they move into the long-derelict house next door, then escalating fights over pets and children lead to a deadly confrontation.

An investigation into the murder of a New York businessman zeroes in on a family member whose plush lifestyle launches a tabloid frenzy; a closer look reveals the suspect's inner demons calling the greedy motive into question.

When a successful Texas lawyer and his wife are executed while sleeping in their bed, Houston police team up with a private investigator, who gets dangerously close to a killer, to uncover a greedy mastermind who proves that privilege can be deadly.

The truth behind the brutal deaths of a prominent and wealthy couple in Libertyville, Ill., remains dormant until 15 years later when a new police task force exposes a murderer who let money remove the sense of consequence.

A woman walks into her home to find her daughter covered in blood; a single drop of blood is the key to finding the attacker.

A pilot flees following a plane crash, becomes a fugitive and lives a double life for decades.

A man disappears after a duck hunting trip in Florida on his sixth wedding anniversary and is later found to have been murdered.

A look back at the 1997 murder of fashion designer Gianni Versace, including interviews with his long-time partner Antonio D'Amico, model Beverly Johnson, fashion journalist Hal Rubenstein, author Maureen Orth and more.

A man steals millions of dollars by conning numerous women and businesses over 25 years; one woman brings together a group of his victims to hold him accountable and make him face justice.

Key players in the case of Rod Covlin, a New York man who is found guilty of murdering his wife for her $5.3 million fortune and attempting to frame his then-teenage daughter, share their stories.

A look back at the 1997 murder of fashion designer Gianni Versace, including interviews with his long-time partner Antonio D'Amico, model Beverly Johnson, fashion journalist Hal Rubenstein, author Maureen Orth and more.

A man steals millions of dollars by conning numerous women and businesses over 25 years; one woman brings together a group of his victims to hold him accountable and make him face justice.

Key players in the case of Rod Covlin, a New York man who is found guilty of murdering his wife for her $5.3 million fortune and attempting to frame his then-teenage daughter, share their stories.

The mysterious disappearance of an elderly New York socialite leads to the investigation of Sante Kimes and her son, Kenny.

Death hits close to home when a Mississippi father of four is brutally killed on his own front porch; soon, a mother and son turn against one another as detectives work to untangle a murky tale of he said she said to close in on a killer.

The identity of a Jane Doe found dead in a New Jersey park holds the key to unraveling a tangled web of fraud and murder that spanned years and pulled in multiple victims along the way.

An industrious woman and an ambitious man buy adjoining houses, intending to restore the derelict properties to their former glory, but when one of the renovations falls behind, it leads to conflict and murder.

A single mother of four children finds the perfect house in New Orleans, then a robbery at a neighbor's home leads to a misunderstanding, then to paranoia, conflict and bloodshed.

Seventeen years into her prison sentence for the poisoning of her ex-husband, Purdie Clark speaks out for the first time; when faced with questions about other lovers who died under suspicious circumstances, the interview takes a dramatic turn.

The mysterious disappearance of an elderly New York socialite leads to the investigation of Sante Kimes and her son, Kenny.

Death hits close to home when a Mississippi father of four is brutally killed on his own front porch; soon, a mother and son turn against one another as detectives work to untangle a murky tale of he said she said to close in on a killer.

The identity of a Jane Doe found dead in a New Jersey park holds the key to unraveling a tangled web of fraud and murder that spanned years and pulled in multiple victims along the way.

A look back at the 1997 murder of fashion designer Gianni Versace, including interviews with his long-time partner Antonio D'Amico, model Beverly Johnson, fashion journalist Hal Rubenstein, author Maureen Orth and more.

A man steals millions of dollars by conning numerous women and businesses over 25 years; one woman brings together a group of his victims to hold him accountable and make him face justice.

Seventeen years into her prison sentence for the poisoning of her ex-husband, Purdie Clark speaks out for the first time; when faced with questions about other lovers who died under suspicious circumstances, the interview takes a dramatic turn.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.

Two young girls in Washington are snatched in broad daylight while riding their bikes; the case goes unsolved for decades, until a new detective with a local connection to the story tries to solve the mystery.

When a young woman fails to show up to work and her mother rushes to her home to try to find her, what she discovers begins an investigation that leads to a suspect no one imagined.

Investigators didn't know if Kathy Heckel was a missing person or murder victim; decades later the case is reopened by a new detective.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.

Two young girls in Washington are snatched in broad daylight while riding their bikes; the case goes unsolved for decades, until a new detective with a local connection to the story tries to solve the mystery.

When a young woman fails to show up to work and her mother rushes to her home to try to find her, what she discovers begins an investigation that leads to a suspect no one imagined.

Investigators didn't know if Kathy Heckel was a missing person or murder victim; decades later the case is reopened by a new detective.

When the body of a beloved father is discovered in a South Carolina home, detectives uncover a toxic love affair that had deadly consequences.

Letti Strait was found guilty of her ex-husband's murder 12 years after the crime.

An attorney is murdered, and a trail of obsession and jealousy emerges.

A decorated police officer relies on his neighbors to help him take care of his beloved daughter, then she accuses one of them of molesting her, and all hell breaks loose.

In New Brighton, Minn., two neighbors get along great until one of them catches Lyme Disease from the deer the other feeds on his property, then the ensuing blame game leads to rising hostility and ends in gunfire.

In an apartment building, two young couples walk around on eggshells because of a neighbor who can't stand one couple's music and the other's dog, then all hell breaks loose, and a violent rampage ensues.

When the body of a beloved father is discovered in a South Carolina home, detectives uncover a toxic love affair that had deadly consequences.

Letti Strait was found guilty of her ex-husband's murder 12 years after the crime.

An attorney is murdered, and a trail of obsession and jealousy emerges.

When a young woman finds out that her boyfriend might have shot and killed a college football player out of revenge, she struggles with coming forward to officials, fearing she could lose her life.

When Ohio mother Heather Bogle goes missing, a detective identifies multiple suspects, until he himself comes under scrutiny for his investigation.

Two young girls in Washington are snatched in broad daylight while riding their bikes; the case goes unsolved for decades, until a new detective with a local connection to the story tries to solve the mystery.

When a young woman fails to show up to work and her mother rushes to her home to try to find her, what she discovers begins an investigation that leads to a suspect no one imagined.

Investigators didn't know if Kathy Heckel was a missing person or murder victim; decades later the case is reopened by a new detective.

The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.

A successful businesswoman and mother of three is found shot in her office; the investigation into her death leaves a family divided.

Two decades after a Jacksonville, Fla., woman goes missing, her son solves the mystery that haunted his childhood.

A 21-year-old college senior is shot and killed in a public park just months before her graduation.

When a mother's corpse is discovered at the Kentucky warehouse where she worked, several employees are investigated; authorities try to connect their prime suspect to the crime.

The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.

A successful businesswoman and mother of three is found shot in her office; the investigation into her death leaves a family divided.

Two decades after a Jacksonville, Fla., woman goes missing, her son solves the mystery that haunted his childhood.

A 21-year-old college senior is shot and killed in a public park just months before her graduation.

When a mother's corpse is discovered at the Kentucky warehouse where she worked, several employees are investigated; authorities try to connect their prime suspect to the crime.

A chance for love brings an Oklahoma woman to rural Texas, but her quick disappearance has investigators following a paper trail that will expose the treachery of greed.

After a John Doe's body is found at a Virginia park, investigators track a killer who has a long history of wrongdoing.

The mysterious disappearance of a beloved nurse leads Arkansas investigators down a twisted path of familial betrayal; as detectives hunt for the missing woman, evidence upturned along the way points toward deadly foul play.

Two California men are at each other's throats over access to a disputed road, and things progress from intimidation and property damage to one of the most shocking murders the area has ever seen.

Bereaved over the loss of their son, a couple is thrilled when a family with two boys moves in across the street; however, the relationship soon sours, engulfing all of them in a conflict that ends in a deadly shooting.

An Appalachian couple is delighted when their neighbors return home after disappearing for 10 years, but they've changed for the worse, unleashing a campaign of endless intimidation and harassment that ultimately ends in a bloodbath.

A chance for love brings an Oklahoma woman to rural Texas, but her quick disappearance has investigators following a paper trail that will expose the treachery of greed.

After a John Doe's body is found at a Virginia park, investigators track a killer who has a long history of wrongdoing.

The mysterious disappearance of a beloved nurse leads Arkansas investigators down a twisted path of familial betrayal; as detectives hunt for the missing woman, evidence upturned along the way points toward deadly foul play.

The murder of a young schoolteacher in Pennsylvania goes unsolved for years, but investigators discover a new tool that may finally help unlock the murderer's identity.

A successful businesswoman and mother of three is found shot in her office; the investigation into her death leaves a family divided.

Two decades after a Jacksonville, Fla., woman goes missing, her son solves the mystery that haunted his childhood.

A 21-year-old college senior is shot and killed in a public park just months before her graduation.

When a mother's corpse is discovered at the Kentucky warehouse where she worked, several employees are investigated; authorities try to connect their prime suspect to the crime.

A mother of two who vanishes during a storm turns out to be a victim of something sinister.

When a San Diego woman who is near death arrives at an emergency room, the FBI and local law enforcement are called in to try to solve a medical mystery and a horrific crime.

Pamela Smart's husband is found murdered; police investigate and discover that Smart is keeping a big secret.

When a college student is found dead after a party, his mother gets the help of a new friend to get the case in front of a jury.

When a wife calls 911 to report her husband has been shot on a country road in Texas, officers rush to the scene.

A mother of two who vanishes during a storm turns out to be a victim of something sinister.

When a San Diego woman who is near death arrives at an emergency room, the FBI and local law enforcement are called in to try to solve a medical mystery and a horrific crime.

Pamela Smart's husband is found murdered; police investigate and discover that Smart is keeping a big secret.

When a college student is found dead after a party, his mother gets the help of a new friend to get the case in front of a jury.

When a wife calls 911 to report her husband has been shot on a country road in Texas, officers rush to the scene.

The body of an unidentified female is found within a forested nature center in Bloomington, Ill; investigators must scramble to piece together her fractured life and try to determine just how familiar her killer may be.

Former police officer Laurie Bembenek is found guilty of murdering her new husband's ex-wife; years later, new evidence comes to light that changes everything.

When Idaho family members return home from a church gathering, they find dinner burned to a crisp, a missing fiancée and signs that a brutal crime has been committed; all leads point close to home as detectives begin their investigation.