When the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide; the case and trial left Dennis Murphy hungry to know more.

After a beloved town librarian is gunned down, investigators discover that this murder-for-hire gives a whole new meaning to a broken heart.

When a Texarkana square dancer is gunned down on the steps of her home, detectives follow a trail of surveillance footage leading straight to the killer.

A pregnant woman vanishes before her own baby shower and her worried family raises the alarm as detectives unravel a chilling mystery; for Josh Mankiewicz, it was a heartbreaking case that stayed with him long after the cameras stopped rolling.

Allegations of real estate fraud and rumors of murder have Sarasota Police on the trail of a criminal whose final plan to evade trouble lands her in the very hands she tried to avoid.

When the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide; the case and trial left Dennis Murphy hungry to know more.

When a Kapowsin, Wash., mother is discovered murdered on her couch in a compromised position, investigators must piece together all the evidence to determine if this was a random crime of opportunity or a facade to humiliate the victim.

Police race for answers after a school teacher is found murdered in her San Antonio, Texas, apartment; while lies and betrayals come to light, the case goes cold, but one detective refuses to give up.

When Melissa Henderson is found dead in her bed, a perplexing mystery ensues; her husband and family believe her death is from natural causes, but the clues lead investigators to a secret life of spying and jealousy and ultimately to a killer.

Jack Rains, an 83-year-old veteran and retired State Trooper, is gunned down at his kitchen table, shot five times in the back of the head; his family and the community are stunned as detectives uncover a tangled web of secrets, misdeeds and deceit.

When a loving couple is discovered murdered execution-style in front of their Kansas home, police race to uncover the truth about who wanted them dead.

The disappearance of 19-year-old Alaska Native Sonya Ivanoff sends shockwaves through the small coastal city of Nome, Alaska; police scramble to find answers until a note is found in a stolen police vehicle telling the cops to back off or else.

The disappearance of 19-year-old Alaska Native Sonya Ivanoff sends shockwaves through the small coastal city of Nome, Alaska; police scramble to find answers until a note is found in a stolen police vehicle telling the cops to back off or else.

When a California housewife is murdered in broad daylight, the suspected killer claims it was a burglary gone awry.

Archie McFarland was stabbed to death and his murder went unsolved for twenty-five years.

Popular teacher and single mom, Bianca Tanner, is embarking on a new chapter in her life with multiple admirers, when she suddenly vanishes; to uncover her fate, detectives investigate each suitor to determine who is genuine and who is a killer.

The battle between a wife and a mistress for one man's heart leads to a deadly car chase.

Popular TV anchor, Diane King, is a local celebrity, passionate advocate and a loving wife and mother; when she gets murdered in her driveway, however, the investigation reveals a twisted tale of sex, lies and stalking.

A quiet North Dakota college town is left in fear after student Mindy Morgenstern is found murdered in her off-campus apartment.

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.

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 the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide; the case and trial left Dennis Murphy hungry to know more.

A veteran cop falls for a beloved grandma he hopes to spend the rest of his life with, but when a home cooked meal sends them both racing to the hospital… this granny's gravy, and her sordid past, are brought under scrutiny.

A respected fire department captain disappears during a fishing trip, but an exhaustive search turns up nothing; almost two years later, a tip reveals a sinister tale of manipulation and a granny whose wishing well hides buried secrets.

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 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.

A horrific discovery in a backyard cornfield is just the beginning of an unspeakable scene; as horrors unfold in this small Midwest town, someone is playing a deadly game of cat and mouse, and it will be years before a ghastly truth is revealed.

A 14-year-old girl discovers her wealthy father brutally executed in their home late at night; the investigation proves that not everything is as it seems, uncovering love affairs, possible connections to the mob and a twisted journey to justice.

A land developer disappears into the Arizona desert, and a brother sets out to uncover the truth; when hikers stumble onto a gruesome discovery, investigators quickly realize no one can be trusted when they find themselves in the line of fire.

As investigators dig deeper into a man's disappearance, they realize his recent online presence may be a charade.

When a Catholic priest-turned-real estate agent vanishes from Florida, investigators examine circumstances stranger than their suspects; a tip exposes a murder-for-hire scheme.

When the last real cowboy is found dead at home, detectives dig in and are hard-pressed to find anyone who'd want to see this loving father murdered; a closer look at his nearest confidants unravels a heinous plot twisted by love and money.

When a real estate agent disappears, Florida investigators scrutinize the men in her life; however, after other women vanish, something more sinister may be at play; it takes a risky escape from an abductor to finally uncover horrific truths.

After a beloved town librarian is gunned down, investigators discover that this murder-for-hire gives a whole new meaning to a broken heart.

The luckiest moment in a man's life gives way to a dark mystery when he vanishes after winning a multi-million-dollar lottery.

When a Texarkana square dancer is gunned down on the steps of her home, detectives follow a trail of surveillance footage leading straight to the killer.

A small town is rocked when a popular hostess at the town's favorite tavern disappears; neighbors in the tight-knit community eye each other suspiciously, unaware that the answers may lie beneath the rolling Nebraska Sandhills.

Allegations of real estate fraud and rumors of murder have Sarasota Police on the trail of a criminal whose final plan to evade trouble lands her in the very hands she tried to avoid.

When the popular owner of a boutique motel on an island paradise in Florida disappears amid signs of foul play, the deadly secrets of a quaint beach town slowly work their way up through the pristine white sand.

When a Kapowsin, Wash., mother is discovered murdered on her couch in a compromised position, investigators must piece together all the evidence to determine if this was a random crime of opportunity or a facade to humiliate the victim.

When a successful lawyer's body is found buried in a South Floridian canal, detectives use innovative technology to follow the gruesome steps taken by an evil killer.

Police race for answers after a school teacher is found murdered in her San Antonio, Texas, apartment; while lies and betrayals come to light, the case goes cold, but one detective refuses to give up.

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

In Marietta, Ga., a businessman is savagely murdered in his home; the violent and personal attack leads the detectives to look for the killer among those who knew him best.

Friends of accused murderer Robert Durst talk about his arrest in New Orleans and his previous whereabouts over 30 years.

When a loving couple is discovered murdered execution-style in front of their Kansas home, police race to uncover the truth about who wanted them dead.

In 2015, Durst is caught on tape professing, "I killed them all"; sitting down with jurors who found the now-confessed killer not guilty of murder in 2003, and examining the possibility of a misled jury, and the outcome of their re-vote.

A deadly high-speed chase in Montana leads "Dateline" on a search through 50 years of history to unravel the mystery of how one man turned into a monster and committed one of the state's most notorious crimes.

A deadly high-speed chase in Montana leads "Dateline" on a search through 50 years of history to unravel the mystery of how one man turned into a monster and committed one of the state's most notorious crimes.

The convicted murderer of a popular teacher is given a second chance at freedom when new evidence is revealed.

Archie McFarland was stabbed to death and his murder went unsolved for twenty-five years.

The battle between a wife and a mistress for one man's heart leads to a deadly car chase.

Twenty-year-old Tiffanie Adams is eight months pregnant when she suddenly disappears; to solve the mystery, police must expose toxic relationships and deadly secrets.

A quiet North Dakota college town is left in fear after student Mindy Morgenstern is found murdered in her off-campus apartment.

When devoted young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal at the hands of a man she trusted.

When the body of an Ohio woman is found in a wooded area near her home months after she went missing, investigators must determine if her death was a suicide or homicide; the case and trial left Dennis Murphy hungry to know more.

A newly single mother of two vanishes after going on a date with an old high school friend she connected with on Facebook; investigators race against the clock to reveal the true identity of the mystery man.

A bomb rocks South Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

When two sisters' husbands turn up dead within weeks of each other, Florida detectives investigate whether the cases are linked.

Morgan Fox, a young mother, is shot dead outside her home in North Canton, Ohio; in the search for her killer, investigators discover a toxic workplace, a twisted obsession, and a killer relationship.

After a well-known business owner is found dead in his Lake Orion apartment, investigators are left untangling a web of lies to uncover a deadly duo looking to get rich quick.

Desiree Sunford, a beloved middle school art teacher in Yakima, Wash., is found dead in her home from multiple gunshots; as detectives dig into her marriage, they uncover a world of jealousy, sex and liaisons.

When a devoted father is found brutally stabbed to death in his Florida home, detectives turn their focus to the picture-perfect family who appear to have it all.

Twenty-one-year-old art student Katelyn Markham vanishes just weeks before college graduation; the investigation unfolds over 13 years, uncovering lies, rage, and a betrayal that hits close to home.

After a Georgia father is discovered bludgeoned by a hammer in his own bedroom, it takes years for detectives to nail down if this murder is connected to a series of online romances or a case of mistaken identity.

Elana Fric, a respected doctor and devoted mother of three, vanishes into the night; the next morning, a suitcase is found dumped in a river; as detectives delve into Fric's personal life, dark secrets rise to the surface, and so does her killer.

A horrific discovery in a backyard cornfield is just the beginning of an unspeakable scene; as horrors unfold in this small Midwest town, someone is playing a deadly game of cat and mouse, and it will be years before a ghastly truth is revealed.

A father disappears from the Cincinnati suburbs, setting off a desperate search that exposes small-town secrets, rivalries, and past threats; six days later, Bobby Farrell is found dead, and detectives and his family stop at nothing to get answers.

A land developer disappears into the Arizona desert, and a brother sets out to uncover the truth; when hikers stumble onto a gruesome discovery, investigators quickly realize no one can be trusted when they find themselves in the line of fire.

Gail Fulton, a devoted wife and mother, is ambushed and shot to death in a library parking lot; as detectives search for her killer, they discover a twisted story of adultery, obsession, and revenge that shocks her small Michigan community.

When a Catholic priest-turned-real estate agent vanishes from Florida, investigators examine circumstances stranger than their suspects; a tip exposes a murder-for-hire scheme.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

When a real estate agent disappears, Florida investigators scrutinize the men in her life; however, after other women vanish, something more sinister may be at play; it takes a risky escape from an abductor to finally uncover horrific truths.

When popular 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street. The case goes cold until detectives unmask a killer with a lethal obsession.

The luckiest moment in a man's life gives way to a dark mystery when he vanishes after winning a multi-million-dollar lottery.

When a man goes missing in rural Barnesville, Ga., investigators try to determine if he left on his own or if foul play occurred.

A small town is rocked when a popular hostess at the town's favorite tavern disappears; neighbors in the tight-knit community eye each other suspiciously, unaware that the answers may lie beneath the rolling Nebraska Sandhills.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

When the popular owner of a boutique motel on an island paradise in Florida disappears amid signs of foul play, the deadly secrets of a quaint beach town slowly work their way up through the pristine white sand.

When popular 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street. The case goes cold until detectives unmask a killer with a lethal obsession.

When a successful lawyer's body is found buried in a South Floridian canal, detectives use innovative technology to follow the gruesome steps taken by an evil killer.

When a well-liked young man in Milwaukee is found shot to death inside his locked home, detectives must piece together his final days through a network of friends and lovers to expose a killer's desire to kill what they couldn't keep.

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

While investigating a missing Oregon handyman, police stumble upon human remains and are left searching a crime scene straight out of a horror movie.

Friends of accused murderer Robert Durst talk about his arrest in New Orleans and his previous whereabouts over 30 years.

After detectives discover a fire chief's dismembered torso in his own barn, they rush to find his wife.

In 2015, Durst is caught on tape professing, "I killed them all"; sitting down with jurors who found the now-confessed killer not guilty of murder in 2003, and examining the possibility of a misled jury, and the outcome of their re-vote.

When a woman finds her husband dead of an apparent suicide by poisoning, suspicious detectives must exhume the body of her first husband to unearth the truth.

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment in Belgium.

A Florida father is determined to find out what happened to his daughter after her fatal fall from a penthouse apartment in Belgium.

The FBI gets involved when a Virginia man's wife and son are kidnapped while vacationing in the Philippines, with a terrorist group demanding millions in ransom.

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

Michelle Hadley is exonerated after spending three months in jail for attempted forcible rape of her ex-fiance's wife.

A cowboy more at ease with horses than people vanishes into the desert after running into a group of California ranchers who believe he's done them wrong.

When a woman's remains are found miles from her home, investigators start digging into her past.

A California mom of three vanishes, and her car is found by the side of a desolate road with a suspicious flat tire; the case goes cold for years until a new detective takes on the case and is determined to get answers.

Twenty-year-old Tiffanie Adams is eight months pregnant when she suddenly disappears; to solve the mystery, police must expose toxic relationships and deadly secrets.

A night out on Hollywood's notorious Sunset Strip leads to a desperate search when a teenage girl doesn't make it home; the search for answers weaves though the strange side of Los Angeles before the tragic truth is uncovered in the Hollywood Hills.

When devoted young mother Sara Summer vanishes from a small Tennessee town, the investigation into her life exposes a world of romance, lies and a fatal betrayal at the hands of a man she trusted.

When a young Texas father is abducted without a trace and later found murdered, Titus County investigators follow a trail of cellphone records and internet history to reveal a dangerous conspiracy fueled by a manipulative mastermind.

A newly single mother of two vanishes after going on a date with an old high school friend she connected with on Facebook; investigators race against the clock to reveal the true identity of the mystery man.

Investigators must determine if they are looking for professional killer, or if they are being told lies from someone in the victim's inner circle, when a Tennessee man who was rumored to have connections with the mob is murdered.

A bomb rocks South Chicago killing Mark Toney, investigators dig beneath the rubble to expose a violent, seductive con game and a shockingly deceitful relationship.

When the loving wife of a Vietnam veteran is found dead in a highway commuter lot, Missouri detectives work to chase down the mastermind of a twisted murder-for-hire plot.

Morgan Fox, a young mother, is shot dead outside her home in North Canton, Ohio; in the search for her killer, investigators discover a toxic workplace, a twisted obsession, and a killer relationship.

After a soon-to-be-wed scrapyard owner is killed, Texas detectives must chase down every lead and conduct hundreds of interviews in order to find the truth hidden behind lies, betrayal and broken hearts.

Desiree Sunford, a beloved middle school art teacher in Yakima, Wash., is found dead in her home from multiple gunshots; as detectives dig into her marriage, they uncover a world of jealousy, sex and liaisons.

When an Oklahoma teen finds her mother and father murdered in their family home, detectives uncover bizarre photos and use new technology to reveal a dynamic duo at the center of the heinous crime.

Twenty-one-year-old art student Katelyn Markham vanishes just weeks before college graduation; the investigation unfolds over 13 years, uncovering lies, rage, and a betrayal that hits close to home.

The abrupt disappearance of a Colorado rancher prompts concerned friends to press investigators to dig up the truth hidden beneath his ranch's calm exterior.

Elana Fric, a respected doctor and devoted mother of three, vanishes into the night; the next morning, a suitcase is found dumped in a river; as detectives delve into Fric's personal life, dark secrets rise to the surface, and so does her killer.

Detectives track down leads from rival biker clubs and scorned lovers to uncover the truth when a beloved biker is found shot to death in his Pennsylvania apartment.

A father disappears from the Cincinnati suburbs, setting off a desperate search that exposes small-town secrets, rivalries, and past threats; six days later, Bobby Farrell is found dead, and detectives and his family stop at nothing to get answers.

An Alabama trucker is found shot in his home on the same day his wife is giving birth.

Gail Fulton, a devoted wife and mother, is ambushed and shot to death in a library parking lot; as detectives search for her killer, they discover a twisted story of adultery, obsession, and revenge that shocks her small Michigan community.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

When popular 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street. The case goes cold until detectives unmask a killer with a lethal obsession.

When a man goes missing in rural Barnesville, Ga., investigators try to determine if he left on his own or if foul play occurred.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

After a beloved Missouri barfly is found stabbed in his home, detectives spend years chasing down leads until a local pastor reveals a shocking confession from one of his parishioners, revealing a twisted desire and deadly secret kept for years.

When popular 25-year-old Keosha Gilmore is shot to death in a car while returning from a date, claims of a mysterious hooded shooter rock this quiet Boston Street. The case goes cold until detectives unmask a killer with a lethal obsession.

When a well-liked young man in Milwaukee is found shot to death inside his locked home, detectives must piece together his final days through a network of friends and lovers to expose a killer's desire to kill what they couldn't keep.

While investigating a missing Oregon handyman, police stumble upon human remains and are left searching a crime scene straight out of a horror movie.

After two Colorado women vanish in a deadly winter storm, key evidence keeps the case open for investigators to uncover the truth; a harrowing blizzard rescue the very same night could hold the clues to an almost 40-year search for the killer.

After detectives discover a fire chief's dismembered torso in his own barn, they rush to find his wife.

When a woman finds her husband dead of an apparent suicide by poisoning, suspicious detectives must exhume the body of her first husband to unearth the truth.

The residents of a glamorous resort town are shocked when a well-known woman from a prominent family is found dead in her home.

The residents of a glamorous resort town are shocked when a well-known woman from a prominent family is found dead in her home.

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

An entrepreneur forges an unlikely friendship with a ragtag group of skateboarders; but when he vanishes and signs point to foul play, police wonder whether he was really a friend or a target.

A cowboy more at ease with horses than people vanishes into the desert after running into a group of California ranchers who believe he's done them wrong.

A California mom of three vanishes, and her car is found by the side of a desolate road with a suspicious flat tire; the case goes cold for years until a new detective takes on the case and is determined to get answers.

A night out on Hollywood's notorious Sunset Strip leads to a desperate search when a teenage girl doesn't make it home; the search for answers weaves though the strange side of Los Angeles before the tragic truth is uncovered in the Hollywood Hills.

When a young Texas father is abducted without a trace and later found murdered, Titus County investigators follow a trail of cellphone records and internet history to reveal a dangerous conspiracy fueled by a manipulative mastermind.

A horrific killing spree in Texas sets off an investigation that uncovers a sordid web of seduction and a pair of killers driven by greed and bloodlust.

Investigators must determine if they are looking for professional killer, or if they are being told lies from someone in the victim's inner circle, when a Tennessee man who was rumored to have connections with the mob is murdered.

When a husband and his adult son are murdered during a violent home invasion, the search for the killers exposes an illicit romance and family betrayal no one saw coming.

When the loving wife of a Vietnam veteran is found dead in a highway commuter lot, Missouri detectives work to chase down the mastermind of a twisted murder-for-hire plot.

When a preacher's wife is gunned down outside her home in Houston, investigators uncover a sordid web of sin and sex.

After a soon-to-be-wed scrapyard owner is killed, Texas detectives must chase down every lead and conduct hundreds of interviews in order to find the truth hidden behind lies, betrayal and broken hearts.

The home invasion murder of a young mother in Oklahoma launches an investigation that reveals a vengeful romance and a murder conspiracy rooted in obsession and greed.

When an Oklahoma teen finds her mother and father murdered in their family home, detectives uncover bizarre photos and use new technology to reveal a dynamic duo at the center of the heinous crime.

When a loving couple are murdered in their home, the investigation uncovers a forbidden romance between two young lovers willing to do anything to get what they desire.

The abrupt disappearance of a Colorado rancher prompts concerned friends to press investigators to dig up the truth hidden beneath his ranch's calm exterior.

The brutal murder of a woman inside her Kentucky home triggers an investigation that reveals an underage romance fueled by obsession and rage.

Detectives track down leads from rival biker clubs and scorned lovers to uncover the truth when a beloved biker is found shot to death in his Pennsylvania apartment.

When a woman's body is discovered in a town park, the investigation into what happened exposes a sordid tale of lust, torture and two cases of cold-blooded murder.

An Alabama trucker is found shot in his home on the same day his wife is giving birth.

When a respected Toronto bookkeeper is found murdered inside his home, the search for his killer focuses on two unexpected suspects and unearths shocking allegations of sex, scandal and a deadly betrayal.

After a woman discovers her brother's brutally beaten body on his bathroom floor, Texas police follow clue after clue and weave together a tale of greed, deception and manipulation.

A squashed tomato and a pinpoint reflection of light in a photo help catch a killer.

An ATM transaction allows Texas detectives to pinpoint a suspect in the slaying of a teacher, but a shoelace stolen from the victim's home proves to be the tie that binds her killer to the crime.

After South Carolina authorities locate a burned and abandoned vehicle, they are led to a brutal crime scene at a local church leader's home. Their small community is divided when an unforeseen perpetrator is found responsible.

Ten years after the murder of a rock singer, forensic scientists use evidence collected to finally bring her killer to justice.

After a Michigan State University grad student disappears and is presumed dead, a professor of geological sciences helps police get the dirt on her killer.

As investigators search for the vicious killer of a Navy yeoman in Kitsap, Washington, they come across the troubling realization that the victim may have expected his own demise.

When a man's wife kills herself 14 years after his college sweetheart commits suicide, police start to get suspicious.

A woman gets shot in her driveway; she may have been the victim of a co-worker half her age that she had recently rejected.

An elderly woman's body is found dismembered along a rural road, sending Missouri detectives in search of answers.

A pair of tennis shoes are found near a victim who had been stabbed on the beach, less than ten yards from her hotel.

Three fingerprints on a window screen are enough for a print examiner to uncover the work of a serial killer.

After a beloved Missouri barfly is found stabbed in his home, detectives spend years chasing down leads until a local pastor reveals a shocking confession from one of his parishioners, revealing a twisted desire and deadly secret kept for years.

With a long list of suspects, forensic experts agree on one thing in this brutal murder: the killer knew his victim.

The only lead to finding a serial killer on the loose is a bloody fingerprint on the body of a victim.

When a prominent businessman goes missing, Georgia investigators race against the clock to locate him, uncovering a killer who will go to any lengths necessary to stay hidden.

Tests reveal the race, eye color and hair color of the person responsible for killing two young women on Halloween night.

A convicted arsonist claims his innocence and with no lawyer, no money and only a fifth-grade education, sets out to prove it.

Dallas detectives are led on an international manhunt after a young dentist is shot to death at her apartment complex, leaving a trail of surveillance evidence and a deep conspiracy of lies.

A canine behaviorist uses the family dogs, who are the only witnesses, to find the murderer of their owner.

Investigators see through a killer trying to cover his tracks by staging the crime scene to learn what really happened.

After two Colorado women vanish in a deadly winter storm, key evidence keeps the case open for investigators to uncover the truth; a harrowing blizzard rescue the very same night could hold the clues to an almost 40-year search for the killer.

A murderous ripple spreads through a lovely New England town when a ghastly discovery is made in a backyard barn; the search for answers uncovers troubling questions about a doting mom and everyone is a suspect until the truth is finally uncovered.

When an Ohio resident is offered $50,000 to kill someone hundreds of miles away, investigators set up an elaborate sting operation to bring down those behind the murder-for-hire plot.

When a small-town Alabama resident is murdered in his home, rumors involving a local pastor begin to swirl as the truth ends up turning the community upside down.

As detectives investigate a mother of two's sudden disappearance, her friends and family reveal she feared she was being stalked.

When a high school student mysteriously vanishes, police must sort through the whispers, lies and deeply personal secrets of a group of teenagers in a small Michigan town to unearth the deadly truth.

A missing young father in Utah returns home and confesses to an affair, but when he vanishes again a short time later, it quickly seems something more sinister is at play.

A Colorado woman vanishes shortly after moving in with a group of friends; an investigation reveals there was a lot more going on inside the home than anyone realized.

The discovery of a body buried in a Delaware backyard launches police into an investigation that leads them on a twisted path through bizarre family ties, an unexpected love triangle and an unthinkable murder plot.

A horrific killing spree in Texas sets off an investigation that uncovers a sordid web of seduction and a pair of killers driven by greed and bloodlust.

When a husband and his adult son are murdered during a violent home invasion, the search for the killers exposes an illicit romance and family betrayal no one saw coming.

When a preacher's wife is gunned down outside her home in Houston, investigators uncover a sordid web of sin and sex.

The home invasion murder of a young mother in Oklahoma launches an investigation that reveals a vengeful romance and a murder conspiracy rooted in obsession and greed.

When a loving couple are murdered in their home, the investigation uncovers a forbidden romance between two young lovers willing to do anything to get what they desire.

The brutal murder of a woman inside her Kentucky home triggers an investigation that reveals an underage romance fueled by obsession and rage.

When a woman's body is discovered in a town park, the investigation into what happened exposes a sordid tale of lust, torture and two cases of cold-blooded murder.

When a respected Toronto bookkeeper is found murdered inside his home, the search for his killer focuses on two unexpected suspects and unearths shocking allegations of sex, scandal and a deadly betrayal.

A squashed tomato and a pinpoint reflection of light in a photo help catch a killer.

An ATM transaction allows Texas detectives to pinpoint a suspect in the slaying of a teacher, but a shoelace stolen from the victim's home proves to be the tie that binds her killer to the crime.

Ten years after the murder of a rock singer, forensic scientists use evidence collected to finally bring her killer to justice.

After a Michigan State University grad student disappears and is presumed dead, a professor of geological sciences helps police get the dirt on her killer.

When a man's wife kills herself 14 years after his college sweetheart commits suicide, police start to get suspicious.

A woman gets shot in her driveway; she may have been the victim of a co-worker half her age that she had recently rejected.

A pair of tennis shoes are found near a victim who had been stabbed on the beach, less than ten yards from her hotel.

Three fingerprints on a window screen are enough for a print examiner to uncover the work of a serial killer.

With a long list of suspects, forensic experts agree on one thing in this brutal murder: the killer knew his victim.

The only lead to finding a serial killer on the loose is a bloody fingerprint on the body of a victim.

Tests reveal the race, eye color and hair color of the person responsible for killing two young women on Halloween night.

A convicted arsonist claims his innocence and with no lawyer, no money and only a fifth-grade education, sets out to prove it.

A canine behaviorist uses the family dogs, who are the only witnesses, to find the murderer of their owner.

Investigators see through a killer trying to cover his tracks by staging the crime scene to learn what really happened.

When a man and his dog make a disturbing discovery in a backyard beach, a series of horrifying events unfold in a sleepy South Carolina town; investigators fear no one is safe as they desperately track a killer potentially hiding in plain sight.

A murderous ripple spreads through a lovely New England town when a ghastly discovery is made in a backyard barn; the search for answers uncovers troubling questions about a doting mom and everyone is a suspect until the truth is finally uncovered.

After young father Matthew Podolak dies from antifreeze poisoning, the manner of his death remains undetermined until his brother embarks on a quest for the truth.

After young father Matthew Podolak dies from antifreeze poisoning, the manner of his death remains undetermined until his brother embarks on a quest for the truth.

Josh Mankiewicz reports on the mysterious disappearance of a Colorado rancher, whose friends think something isn't right and spend years fighting for answers.