A woman's body is found inside a burned mobile home and the autopsy reveals she was beaten, making this a murder.

Security guard who disappeared from his post was found a year later in a remote camp site; a decade later, a phone call and a paint smear on his boot helped scientists determine what happened during his final moments.

When three students are brutally murdered close to campus, investigators must determine what the women had in common before their serial killer strikes again.

A bag full of evidence recovered from an iced-over river helps to reveal the murderer of a businesswoman in her own shop.

Eyewitness to real estate agent's murder is put under forensic hypnosis in an attempt to help him recall the killer's face.

After a fire dispatcher is found dead in a raging house fire, police discover that it's not the first time his wife has become a widow, and investigators get a confession in an unexpected location.

After a decade of rumors, an elderly woman in rural Louisiana falls under suspicion when a man is found dead in her apartment, and local authorities discover an extensive history of tragedies, all surrounding the friendly church lady.

A dancer is murdered in her Virginia home.

A dancer is murdered in her Virginia home.

A chance encounter by custom agents leads to a break in the case of a mother who disappeared days before she was supposed to move to a different city with her young son; a witness speaks out 20 years after the incident.

A family of four is found dead inside a partially burned Indiana home; when investigators discover that two of the victims died from gunshot wounds, the race is on to determine whether the killer was a stranger or someone closer to home.

An elderly couple and their daughter are found beaten and stabbed in their home in central Texas; from potential family members to disgruntled employees, investigators consider many suspects and leads before finding answers in an unlikely place.

In an upscale high-rise in Chicago, a successful businesswoman is murdered as her boyfriend sleeps beside her; investigators point a finger at the boyfriend, but an exhaustive investigation uncovers the surprising architect of her murder.

A mother is shot to death while her young daughters lay asleep in the same room; baffled investigators wonder if an open door invited an intruder in, or if the killer is someone else she trusted who has been in the house all along.

Single mom Margie Danielsen falls in love with a handsome chef, but when an episode of "America's Most Wanted" airs, she realizes she may be far too close to a fugitive and must risk her life to bring him to justice.

When a dance instructor waltzes into widower Alan Helmick's life, he is elated until someone inspired by a movie puts an end to his dreams; It will take a savvy team of investigators to bring a killer to justice.

Kay Mortensen takes pride in preparing for every possible threat, then he is found murdered, and two of his loved ones wind up behind bars.

Jodi Arias' murder trial captivates the nation, exposing her secrets; however, the trial fails to solve the mystery of who this woman is behind her veil of lies.

A graduation party ends with a man's death and leaves two teenagers facing a long fight for justice.

The fire breaks out before dawn; after the smoke clears, a mother of two young children is found dead; it's the tragic end to a life that held so much promise, but for investigators, it is just the beginning.

Kevin and Morgan Mengel are happy at first, but when the marriage goes bad, he goes missing; police wonder if he simply left, but a family's relentless pursuit leads to a stunning confrontation and, eventually, the truth.

A family mourns the loss of a young mother in a house fire; authorities rule it an accident; years later, there is another accident and second loved one gone; investigating if this just a string of bad luck or the work of a calculating killer.

The investigation into the mysterious disappearance of a Canadian man sparks an international manhunt for an elusive killer with multiple false identities.

A week before a wealthy banker's divorce was set to reach a settlement, an ex-con says he was hired to murder someone in the family.

He was a wealthy doctor with a perfect life and the perfect wife; then, he found her dead on Valentine's Day; she was beloved but did have enemies; investigators followed a bloody trail of evidence, leading to a big courtroom twist.

A week before a wealthy banker's divorce was set to reach a settlement, an ex-con says he was hired to murder someone in the family.

After a small-town storeowner is murdered, detectives work to unravel his ex-wife's web of lies and capture a killer.

A voice from beyond the grave helps investigators solve a crime after a Sunday School teacher loses two husbands in a row under suspicious circumstances.

A double homicide in upstate New York leads detectives on a cross-country investigation to piece together a case with a surprising suspect at the center.

A double homicide in upstate New York leads detectives on a cross-country investigation to piece together a case with a surprising suspect at the center.

A doctor ingests a lethal chemical, causing friends to wonder if it was an attempt at suicide or if he was poisoned -- until a love triangle is uncovered.

A motocross champion and a model tie the knot in Las Vegas, never knowing their wedding vows will trigger a mysterious murder plot and a decades-long investigation.

A dental student rejects her boyfriend's marriage proposal, then dies under mysterious circumstances; when another victim dies under similar circumstances 14 years later, investigators must determine if the two cases are fatally intertwined.

After a man is found murdered, detectives search for a motive in the seemingly senseless slaying; after considering whether it was a case of mistaken identity or a robbery, investigators ask if secret desires caused a killer to strike in God's name.

When police investigate the murder of a Private Investigator the trail leads them to a wealthy woman who had affairs with both a father and his son.

A young mother's passionate affair with an old boyfriend ignites suspicion when someone close to both of them is murdered.

When a young military wife goes missing from a Marine base, investigators suspect a forbidden love affair and a secret pregnancy may have driven someone to murder.

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.

A hunting safari in Zambia ends in tragedy when a shot rings out from the cabin of a dentist and his wife; Andrea Canning revisits one of the most unique cases she's covered, one that sent her thousands of miles from home in search of answers.

A couple is murdered shortly after their wedding and police suspect a family feud is the cause; Josh Mankiewicz looks back at what started the dispute that left him floored.

While North Carolina detectives hunt for answers in the murder of 28-year-old James Chambers, his mother searched for his remains; Andrea Canning reflects on the family's unrelenting quest to find justice for James.

A wife and mother is taken into an unmarked car by a blond woman on a Monday morning, but police are unable to find any record of her arrest; for Josh Mankiewicz, this case reset the bar for brazen and he revisits the reasons why.

Nathan and Denise Leuthold build their family on faith, but suddenly one of them dies and the other is under suspicion; it's a story that stays with Andrea Canning, both because of what happened and when it happened: Valentine's Day.

A young Tennessee woman vanishes and misses her family's Thanksgiving dinner; determined to track her down, her family takes matters into their own hands.

A Valentine's Day rendezvous in an Atlanta-area park turns deadly, and investigators race to find the killer of a beloved husband and cub scout leader; when detectives reveal the mastermind behind the brutal slaying, the community is left speechless.

Peachtree City socialites Ruby Joyner and Halima Jones are found murdered in a van, igniting a frenzy within their wealthy community; when police dig into the women's personal lives, they uncover a secret that blows the case open.

The discovery of a 19-year-old's car abandoned on a bridge in New Jersey turns into a missing person case that evolves into a homicide investigation; police discover a plot involving money, close friends and a betrayal.

The discovery of a 19-year-old's car abandoned on a bridge in New Jersey turns into a missing person case that evolves into a months long homicide investigation; police discover a plot involving money, close friends and a fatal betrayal.

A brilliant woman who rose from poverty and became a successful criminal defense attorney is murdered; investigators look into her clients and follow a bizarre string of clues.

A newlywed bride disappears during a freezing Canadian winter leaving police with few clues; the search for her uncovers an unconventional marriage leading to multiple suspects.

Two young newlyweds move in with the groom's mom to build for their future, but when they mysteriously disappear, investigators embark on a cross-country manhunt for a cold-blooded con man and killer.

Eight days before the wedding of their dreams, a couple's plans are derailed by a brutal murder; a detailed investigation unravels a murder-for-hire plot that leads them to suspect a member of the wedding party.

Investigators have no shortage of suspects when a Wall Street millionaire is murdered in the middle of a bitter divorce; they must untangle a series of illicit affairs and dangerous liaisons to uncover the surprising identity of the killer.

The lifelong friendship of two men is threatened when they both love the same woman, leading investigators to suspect murder when one of them disappears.

A handsome new dance partner awakens unfamiliar emotions in a conservative young wife putting two marriages in turmoil; when she disappears shortly afterwards, investigators must unravel a confusing trail of betrayal and heartbreak to crack the case.

Hunters stumble across a young woman's decaying body wrapped in fabric, launching an investigation across several counties in Florida; horrific rumors quickly swirl and a night of partying that morphed into an act of desperation is revealed.

After evidence of a violent attack is discovered in a West Virginia home, the body of a beloved photojournalist is found in the woods; the search for the killer reveals a sordid affair and a murder-for-hire plot with a shocking co-conspirator.

In the Los Angeles suburbs, a family is brutally attacked in its residence, leaving four dead and a mother clinging to life; as police search for answers, suspicion grows closer to home and unveils a macabre obsession fueled by young love.

After two best friends are reported missing, Texas and Minnesota police team up to bring a suspected serial killer to justice; an accomplice shares her side of the story from behind bars, revealing chilling details of the crime.

A North Dakota community is rocked after a beloved mother is found stabbed to death in her home.As police look to those closest to her for answers, an informant comes forward and exposes a dangerous couple's vengeful plot.

When authorities respond to a car fire in rural Michigan, they find a charred body discarded nearby; as the investigation unfolds, the victim's phone records point to a vicious plot stemming from a dangerous infatuation.

Just months before his retirement, a missing trucker's body is found in a remote creek; as detectives run out of leads, a seemingly minute detail breathes new life into the investigation revealing two lovers with a nefarious plot.

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.

Exploring the past of the con man "Dirty" John Meehan and his trail of manipulation that led to a dangerous end with Debra Newell and her family; exclusive interviews with former girlfriends and law enforcement who speak out for the first time.

Twenty-seven-year-old Egypt Covington is found murdered in her home; investigators in Michigan quickly identify a person of interest but years pass without an arrest.

Twenty-seven-year-old Egypt Covington is found murdered in her home; investigators in Michigan quickly identify a person of interest but years pass without an arrest.

A matriarch's death leads to a prominent family from Texas being torn apart by decades of betrayal, greed and mistrust.

Campus cops make a terrible discovery in a dorm room after a boyfriend's weekend visit goes horribly wrong.

A girl's recovery from a gunshot wound inspires the community to get her justice.

Social climbers get remarried and blend their families; then, a mysterious disappearance leads investigators into a top-secret world of espionage, and a killer escapes justice for nearly a decade.

College sweethearts celebrate their love with a happily-ever-after wedding; within months, their fairytale marriage ends with bloodshed igniting a hunt for a charming and manipulative killer who may just get away with it.

A teenage Romeo and Juliet defy family differences to marry and have a baby boy, but their joy is shattered when violence rips the family apart; decades later, the cold case gets a lead that reveals deep family secrets and a web of lies.

An Ozarks country wedding brings hope and second chances to a Christian couple; but friends and family are mystified when they vanish in the dead of night from a farmhouse that had been given to them by the groom's mother.

A housewife turned porn star teams up with her co-star to commit murder after a wild sex party.

An evangelical housewife and a former child star devise a scandalous murder plot.

Two young lovers embark on a psychedelic road trip inspired by their favorite movie.

A prison guard falls in love with an inmate and finds herself willing to do anything to make him happy.

The story of two teenage lovers who, like Romeo and Juliet, made plans to commit suicide together; first, though, they had another life to take.

The dark side of two former honor students.

Police wonder if there's more than meets the eye between a young newlywed and her openly gay co-worker.

An affair between a wealthy doctor's wife and a younger bad boy ends in violence.

A man stumbles on a body in a neighbor's garage and Detroit police hope the victim's tattoo will help identify the victim and point them toward the killer.

He is the serial killer you've never heard of ... until now. In 1973, 22-year-old Doug Gretzler embarked on a cross-country road trip that spiraled into a brutal killing spree. In just three weeks, he and his accomplice, 28-year-old Willie Steelman, murdered 17 people. Their motive? A mystery that has left family members, law enforcement and experts baffled for decades. Drawing from first person interviews and over 500 hours of recorded conversations with Gretzler himself, hear his darkest confessions and the chilling psychology behind his crimes for the very first time.

A man stumbles on a body in a neighbor's garage and Detroit police hope the victim's tattoo will help identify the victim and point them toward the killer.

After a young woman vanishes from her neighborhood, North Carolina detectives are snared in a tangled web of deceit as they uncover a vicious love triangle; it's a race against time to find a killer and the evidence they need to solve a dark mystery.

When a long held secret in Florida threatens to expose a deadly truth, investigators work to unravel a baffling mystery; the dark life of a beloved mother may have put her in danger; a husband's desperate pleas may be the key to solving the case.

Young mother Heyzel Obando is shot to death in her home, and it will take old-school interrogation skills to catch the killer and bring justice to her grieving mother.

A group of women help bring down a smooth talking serial predator turned killer who lured young women with promises of fame and fortune.

A group of women help bring down a smooth talking serial predator turned killer who lured young women with promises of fame and fortune.

When Bonnie Craig was found dead, police collected DNA, but it didn't match anyone in the system; 12 years later there is a hit, but the man is thousands of miles away and, as it turns out, prosecutors need more than DNA to convict a killer.

A man is shot and killed while picking up his daughter for a court-ordered visit.

Survivors of the Westgate Mall attack in Nairobi, Kenya, share their stories.

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.

New interviews with insiders reveal how career criminal Charles Manson convinced his followers to kill innocent victims and deliver him the fame he craved.

Fifty years after the infamous Manson Family murders, a look at the trail of the women who blindly followed Charles Manson; including new and exclusive interviews.

An investigation into the disappearance of an Iowa mother sends police in two states on a wild journey, during which they encounter a volatile love triangle, stolen identity, arson, and a relentless stalker.

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.

A churchgoing southern woman loses her husband to tragedy, but a cloud of suspicion haunts her new marriage and leads investigators to a new conclusion.

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.

In the 1970s, Ted Bundy murders at least 36 young women; glamorized as a handsome, well-educated killer who outsmarted the law, Bundy may have been an evil genius or a con artist posing as privileged to hide the monster in plain sight.

As notorious serial killer Ted Bundy awaited execution, he exchanged chilling letters with the woman he loved like a sister; now she finally reveals the untold story of the letters, and her harrowing journey with the man she discovered was a monster.

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.

As notorious serial killer Ted Bundy awaited execution, he exchanged chilling letters with the woman he loved like a sister; now she finally reveals the untold story of the letters, and her harrowing journey with the man she discovered was a monster.

Dr. Al Carlisle's descent into the violent mind begins by chance, when he's asked to run a psychological evaluation on a man who will go on to become one of America's most infamous serial killers: Theodore Robert Bundy.

Dr. Carlisle's evaluation of Ted Bundy is over, but his work on the notorious serial killer has just begun; as Dr. Carlisle develops his theory of the development of the violent mind, Bundy escapes from prison and goes on a murderous rampage.

In an exclusive interview, Emma Coronel, wife of drug lord Joaquín "El Chapo" Guzmán, reveals the seduction and danger of life with a criminal mastermind, while confronting the ugliest truths of his actions and grappling with her own accountability.

A family begins a relentless pursuit of justice after the death of Nevada attorney Susan Winters is ruled a suicide; Susan's parents open up about the seven-year case and their efforts to push back against the criminal justice system.

A family begins a relentless pursuit of justice after the death of Nevada attorney Susan Winters is ruled a suicide; Susan's parents open up about the seven-year case and their efforts to push back against the criminal justice system.

Debbie Hawk's three children arrive home to find their mother missing, with blood throughout the house; investigating who did this and why.

An entire region is on edge in April 1988 after college students Cassandra Hailey and Keith Call go missing from a lovers' lane area in northern Virginia.

When Annamaria Phelps and Daniel Lauer turn up dead in a lovers' lane area close to the Colonial Parkway in northern Virginia, many in law enforcement are convinced that this fourth double homicide in three years is the work of a serial killer.

A third grader wakes up to a nightmare, finding his mother stabbed nearly 40 times in her bed; the police suspect those closest to her as their investigation uncovers the shocking evil that crept inside her house that night.

A young teacher's assistant is raped and fatally shot in the middle of the night; her roommate, awakened by the noise, calls 911 and reports it as a suicide, beginning an intriguing mystery of motive, heartbreak and a tragic discovery.

In small-town Arkansas, as his wife sleeps nearby, a larger-than-life personality is silenced when a killer fires a single bullet into his head; suspects include the victim's wife and a jealous neighbor.

A yearslong investigation into the killer of Johnia Berry, who is stabbed more than 22 times in her Knoxville, Tenn., bedroom while her male roommate escapes.

After small-town newlyweds are found gunned down next to their car, Georgia detectives start a multistate investigation and discover just how far a criminal trio will go to prove itself.

Oklahoma detectives must untangle a twisted love triangle to discover the truth after a young man is shot in his own home.

An ordinary August day turns into a nightmare for the Bakersfield community when a local father is found murdered in a field; police are led down an unusual trail of evidence, leading to a killer caught on camera.

When a young, father-to-be is found murdered in his front yard in Florida, investigators chase down multiple leads and track a trail of deceit to bring a jealous killer to justice.

When the body of a young man is discovered burned beyond recognition, Alabama authorities sift through evidence to track down the unlikely couple at the center of this heinous crime.

A beloved pediatric doctor is beaten and drowned in his own home; when detectives surveil a suspect, the waters are muddied by lies, suspects on the run, and an international manhunt.

All leads run dry after a former film star is found shot to death in his home, but as investigators continue hunting down a suspect, they learn that this Hollywood drama has more twists and turns than any blockbuster hit.

As notorious serial killer Ted Bundy awaited execution, he exchanged chilling letters with the woman he loved like a sister; now she finally reveals the untold story of the letters, and her harrowing journey with the man she discovered was a monster.

The abrupt disappearance of a Henderson, Nev., husband and father of five brings to light accusations of infidelity and cover-ups over a two-year hunt for evidence and truth.

An investigation quickly turns cold in rural Tennessee when the body of a small-town farmer and businessman is found near a trash pile; the case is reopened 25 years later, hoping advances in technology will finally help close this cold case.

After a father's life is tragically cut short in a car accident, the events that follow force Ohio investigators to race against the clock to prevent a murder-for-hire plot before it's too late.

The case of a beloved Kenosha social worker's murder resurfaces nearly a decade after leads run dry when an odd call from another state reveals the gruesome truth about a vengeful pack of killers.

A man stumbles on a body in a neighbor's garage and Detroit police hope the victim's tattoo will help identify the victim and point them toward the killer.

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 death in the military occurs thousands of miles from the battlefield as a dedicated military man who survived war zones becomes caught in the crossfire of a lover's triangle.

Four years after a 28-year-old dies after hosting a New Year's Eve party, a jury must decide if it was suicide or murder.

Co-lead investigator in the Steven Avery case Tom Fassbender discusses the case and allegations investigators coerced Avery's nephew, Brendan Dassey, into making a false confession.

Houston police search for a serial killer preying on young women until a local man's DNA finally reveals the culprit; upon his arrest, the killer's sister and daughter learn his true identity.

The ex-girlfriend of the self-proclaimed Crossbow Cannibal reveals the mental and physical abuse she endured for years at the hands of one of the U.K.'s most heinous serial killers.

The youngest son of a church-going family man finally learns the truth about his father when the man's second wife is found dead in their hot tub, and police look back at the suspicious drowning death of his first wife.

In the 1990s, New York is on edge as a killer leaves coded clues at crime scenes and declares his compulsion to choose victims by their birth signs.

A rash of young men goes missing around Chicago during the 1970s; when bodies start washing up in the river, a pattern emerges; a small piece of evidence leads police to the home of a model citizen, where his furnace puts the suspect in the hot seat.

Police find a string of murdered women in shallow graves in very remote areas of the Alaskan wilderness; after months of searching, police zero in on a local family man living a double life that no one suspects.

When a new inmate at the Utah State Prison claims he cannot remember the crime that sent him to prison, Dr. Carlisle's experiments with hypnosis reveal a violent alternate personality hidden just beneath the surface.

Dr. Carlisle discovers a surprising link between the traumas of war and the development of the violent mind when he interviews a Vietnam War veteran turned killer.

Dr. Al Carlisle's descent into the violent mind begins by chance, when he's asked to run a psychological evaluation on a man who will go on to become one of America's most infamous serial killers: Theodore Robert Bundy.

Dr. Carlisle's evaluation of Ted Bundy is over, but his work on the notorious serial killer has just begun; as Dr. Carlisle develops his theory of the development of the violent mind, Bundy escapes from prison and goes on a murderous rampage.

As notorious serial killer Ted Bundy awaited execution, he exchanged chilling letters with the woman he loved like a sister; now she finally reveals the untold story of the letters, and her harrowing journey with the man she discovered was a monster.

Police launch a search for a killer after a teenager returns home to find his father's body in a pool of blood.

Pathologist examining the death of a politician who was running for re-election finds tiny puncture wounds at the autopsy.

A Naval officer who threatened to go public with tales of on-the-job sexual harassment and assault is brutally murdered, but when investigators find the allegations could be part of an elaborate scheme for money, they turn to forensic science.

A man is found stabbed to death after a night in a strip club; a drop of blood on a bedspread becomes critical evidence five years later.

After police identify a murder victim thanks to her butterfly necklace, they discover several co-workers had vendettas against the victim.

The brutal murder of a construction site foreman looks like the work of a disgruntled employee, but forensic science points to an unlikely suspect.

A shooting victim mutters the name of her apparent assailant before dying, but fingerprint comparisons, handwriting analysis, ballistics and DNA testing show someone else close to home is the true killer.

A woman's story seemed far fetched; she tells investigators that a man broke into her home wearing only underwear and gloves, killed her boyfriend and raped and terrorized her.

After a Delaware man's mother is found dead, he tells a story that's so improbable police think it can't possibly be true.

A family vacation turns into a terrifying search for a missing wife and baby, then becomes a manhunt for a killer who committed a horrific crime.

A DNA dragnet catches a killer eight years after the kidnapping, rape and murder of a college coed in Oklahoma.

A nosy neighbor with a disturbing obsession becomes a suspect in a woman's murder at an upscale apartment complex; police discover an incredible link to an unrelated murder thousands of miles away.

A college student turns up dead and her boyfriend becomes a prime suspect when blood splatters are discovered on his wall.

Texas police hunt frantically for a brutal rapist. No one knows where he'll strike next, but given the increasingly violent nature of his crimes, he must be found soon.

Lies, deception and a love triangle lead to the murder of a wealthy American on a road in Mexico.

When a young Marine goes missing, NCIS agents uncover a tragic mystery that stuns a Virginia Beach naval base; an online love affair results in the murder of an innocent victim.

After the cause of the death of Stacy Feldman in her Denver home is ruled as undetermined, friends and family join forces to piece together what happened; insiders close to the case speak out about the seven-year battle for justice.

After the cause of the death of Stacy Feldman in her Denver home is ruled as undetermined, friends and family join forces to piece together what happened; insiders close to the case speak out about the seven-year battle for justice.

When a San Antonio man shoots his wife, he claims to have shot her after mistaking her for an intruder.

After a teenage son reports his family shot and stabbed to death, police discover the dead father's prior law enforcement ties made a revenge killing likely; however, as investigators delve deeper, they realize the murders are much more personal.

When three generations of a family are murdered inside their Bakersfield home, police find their main suspect was over 2,000 miles away at the time; it will take the combined efforts of law enforcement and an entomologist to deliver justice.

In a burned-out cabin in Northern California, firefighters find the remains of the Buchanan family; when investigators discover the victims were shot and the fire was set to cover it up, they find the killer hiding in plain sight.

A young father is found executed on a desolate roadway; a heated family feud over custody of a child leads investigators to a shocking conspiracy between a drug dealer, a successful lawyer and a family member.

When two women are shot dead in the lobby of a crowded courthouse, investigators find themselves digging into a bizarre custody dispute and bringing them to a determined family that will stop at nothing to get what they want.

A horrifying hit-and-run leaves two women near death and their families blaming each other; the search for the truth leads detectives on a massive hunt for a father who can't bear to witness his daughter's freedom.

A man makes a frantic call to 911 after finding his wife dead in a bathtub, but the couple's daughters lead police to investigate their father.

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.

Aasha Davis moves to Hollywood with big dreams; her sister Lesley follows for support; Lesley goes missing and Aasha is desperate to find her; in a town built on deception, the police come up with a high-stakes plan to smoke out their suspect.

It is just before Halloween; Joel Lovelien and his fiancé head to a local bar packed with people in costume; Joel steps outside and walks into a troubling mystery.

Keith Reed is a highly-regarded school superintendent; when he doesn't show up at an out-of-town conference, it sets off alarm bells; investigators take a hard look at his love life for clues and make a startling discovery.

Kelli Bordeaux is just starting what she hopes to be a long career in the military, but fate has other plans; when she vanishes, friends and family launch a frantic search, but it is a stranger hell-bent on justice who uncovers the ugly truth.

A week before a wealthy banker's divorce was set to reach a settlement, an ex-con says he was hired to murder someone in the family.

Chilling details come to light in an alleged murder-for-hire plot targeting a former NYC police officer's husband. The officer's ex-boyfriend and other insiders close to the case speak out in their first TV interviews.

Sandra Galas was born and raised in paradise; police investigate two men in Sandra's life, but the case goes cold; her father refuses to give up, relentlessly pursuing the truth for more than a decade.

Chilling details come to light in an alleged murder-for-hire plot targeting a former NYC police officer's husband. The officer's ex-boyfriend and other insiders close to the case speak out in their first TV interviews.

Detectives believed two young children witnessed the brutal murder of their mother; the prosecution builds their case around what they thought those kids observed, but another version of events may be possible.

A story of teens, text messages and a convoluted search for the truth; Conrad Roy, who had shared a secret with someone close to him, had vanished.

After Florida teacher Denise Hallowell is found murdered in her home, investigators examine her family's tumultuous past in their desperate search for a killer; Denise's son Carlos Hallowell sits down for an exclusive interview.

After Florida teacher Denise Hallowell is found murdered in her home, investigators examine her family's tumultuous past in their desperate search for a killer; Denise's son Carlos Hallowell sits down for an exclusive interview.

When a woman kills the man she suspects of being involved in an attack that left her husband dead and her young son wounded, she claims self-defense.

Happy newlyweds renovate a house for their future family when tragedy strikes; it isn't until a dark and twisted secret is revealed that justice is served for a devastating double homicide.

Just five days before her elaborate Long Island wedding, a beautiful and brilliant Yale student goes missing; a massive search effort is launched to find her before her wedding day.

A mysterious illness strikes a newly married electrician, and his condition gets increasingly dire as doctors search for answers; it will take a scientific breakthrough to solve this burning mystery and catch a cunning killer.

When a young mother is shot and killed, a revolver leads investigators to someone who knew both the victim and her ex-husband, but nothing is as simple as it seems.

After a small town dentist is stabbed to death, investigators discover a web of extra-marital affairs and infidelity, and the odd behavior of an unexpected suspect helps crack the case.

After a beloved school superintendent is killed in a small town, detectives discover that a secret affair and a broken promise may have fueled the passions that led to murder.

Josh Mankiewicz re-examines the kidnapping and murder of 17-year-old Carla Walker following a Valentine's Day dance in Fort Worth, Texas; Cutting-edge DNA technology and diligent police work lead detectives to her killer.

When Leslie Neulander dies after what seems like an accidental fall in the shower, her book club friends join forces to seek justice on her behalf; Andrea Canning reflects on some of the most determined women she's ever met.

An apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband hospitalized; for Blayne Alexander, getting to know Heidi through loved ones was a privilege; for investigators, learning about Heidi helps solve the case.

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice; for Josh Mankiewicz, this cold case was one of the strangest he's ever covered. He looks back at the reasons why.

After a woman is murdered, a secret is exposed but a mystery still looms; Andrea Canning re-examines the story she first covered years ago; new developments lead to an unexpected conclusion and an interview you have to see to believe.

A mother is found dead in a house fire, but an autopsy reveals a brutal murder; the case goes cold until an unexpected confession sheds new light; Blayne Alexander looks back at a family shattered by loss, but determined to uncover the truth.

Two murders in Toronto ignite an investigation that spans four decades, but breakthroughs in investigative genetic genealogy help crack the case; Josh Mankiewicz revisits the mystery that took him to the coldest and most remote place he's ever been.

After a nurse and mother-of-three is murdered inside her Illinois home, investigators uncover security camera footage that could be key to solving the case.

After New Jersey mother Michelle Lodzinski reports that her 5-year-old son has vanished from a carnival, detectives embark on a decadeslong investigation until a family member identifies a key piece of evidence pointing to a potential suspect.

After New Jersey mother Michelle Lodzinski reports that her 5-year-old son has vanished from a carnival, detectives embark on a decadeslong investigation until a family member identifies a key piece of evidence pointing to a potential suspect.

Over the course of a year, violent crimes are committed against two women from the same church; evidence is revealed that suggests the two cases are not just coincidences.

A romantic anniversary getaway for a couple of high school sweethearts turns disastrous when they become victims of a robbery gone wrong; homicide investigators unravel a lurid secret at the heart of the murder, leading them to a stone-cold killer.

While a young couple enjoy a romantic honeymoon, a brutal sexual assault and murder occurs; investigators must navigate a web of lies, suspects, and clues to bring a charismatic killer to justice.

A pregnant day care worker is savagely attacked and murdered before her wedding in Mississippi; police must match their wits with a devious killer and untangle a case complicated by a lurid love affair.

Police investigate the murder of a popular insurance salesman in a small Midwestern town; as they untangle a web of lies and deceit, police discover that a religious leader hides some sinful secrets.

When a wife and mother is horrifically murdered in a wealthy suburb, police uncover a hidden world of sex and drugs that leads them to a killer they never expected.

Police in Michigan, struggling to solve the murder of a beloved scrapyard owner, get a break in the case when an ex-cop's suicide note exposes a web of lies and a secret affair.

When a beloved plastic surgeon and his office manager are gunned down at work, detectives chase down several leads until they uncover one suspect hiding malicious intent.

When a family dispute turns violent and results in the death of an Oregon man, detectives must sort through a cast of characters to uncover the leading lady at the center of the crime.

The search for a missing boater on Lake Coeur d'Alene turns sinister after a local newspaper uncovers a shocking story, forcing residents of the peaceful lake town to question their neighbors.

A haunting text message leaves the family of a missing young man desperate for answers; as Chicago detectives work through multiple theories, they eventually unearth the shocking truth to his sudden disappearance.

After an Air Force pilot is found shot to death in his Ohio home, authorities embark on an international manhunt that spans over a decade to bring the fugitive to justice.

Just as detectives investigating the death of an Atlanta based rapper are closing what appears to be a domestic dispute case, they are faced with horrifying evidence planted by the victim seconds before his death.

The murder of an Arabi, La., man forces authorities to examine every possible lead as they eventually learn their prime suspect is closely tied to an open cold case in Indiana.