Angel's Landing was a community of free-spirits with Lou Castro at its center; Investigators suspicious of the mysterious deaths happening there; commune members have courageously decided to tell their stories in hopes of helping others.

Investigators focus on her husband as the main suspect when a woman is found dead at the bottom of her staircase, but family and friends rally behind him.

A scenic drive up the coast of California turns deadly when a young woman falls from an overlook in Big Sur, but when the people closest to her hear about the tragic accident, they are convinced that something more nefarious is going on.

The investigation into the death of Spokane, Wash., businessman exposes a web of malevolence extending from the Pacific Northwest to a North Dakota oil field.

The investigation into the death of Spokane, Wash., businessman exposes a web of malevolence extending from the Pacific Northwest to a North Dakota oil field.

When a mother disappears, the internet is still in its infancy; decades later, a cold case investigator wonders if Facebook could be used to help find out what happened to the woman who vanished so long ago.

A Florida co-ed disappears after a night on the town, but as investigators trace her last steps, they fear some missing girls at another campus might be connected.

When the car of a Southern California girl is found abandoned, investigators spend years and travel hundreds of miles trying to solve her mysterious disappearance, and an unimaginable backyard discovery by drug agents leads to a vicious killer.

In Columbia, S.C., a delusional young man is gunning down locals in cold blood with a 12-gauge shotgun; experts analyze this evil killer, as he leads detectives on a chase across state lines all the way to Texas.

In Dearborn Heights outside Detroit, police find a killing field of strangled young women near the train tracks; experts weigh in as a massive manhunt leads detectives to a twisted killer with a taste for necrophilia.

When authorities discover a young woman's body in a shed, they struggle to determine whether her killer is someone under her own roof or the result of an illicit affair.

A doting grandmother alerts police when she recognizes her daughter's dead body on the evening news, triggering an investigation that proves blood isn't always thicker than water.

A concerned father in Arkansas reports his son missing, launching an investigation that would unearth a dark network of lies and a horrific discovery more deadly than police ever imagined.

A small town church is stunned when a parishioner is murdered; in a shocking twist the suspect pool is drawn directly from the church walls.

When a charismatic father and adored member of the local youth sports community is bludgeoned to death, police must discern fact from fiction to pinpoint his murderer.

Days before Christmas 1984, 12-year-old Jonelle Matthews vanishes from her home; as shock grips Greeley, Co. local detectives turn to the FBI, President Reagan and a national milk carton campaign for answers.

The story of Jonelle Mathews, the first missing child given the tragic distinction of appearing on a milk carton.

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.

In the '90s Atlanta tech boom, an IBM programmer is found shot to death and surrounded by cocaine in his home; as detectives dig deeper into the past of this tech phenom and family man, they're shocked to discover all isn't what it seems.

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to re-examine the mysterious death of Las Vegas casino magnate Ted Binion.

When Dr. Joe Sonnier is murdered, the investigation reveals simmering jealousies and a love triangle; Andrea Canning recalls a doctor who dedicated his life to helping others.

The story of Kara Robinson: abducted in broad daylight from a friend's front yard. The 15-year-old is held captive and sexually assaulted for 18 hours, until she engineers her own escape and leads authorities to her assailant's apartment.

A pastor's secrets come to light, triggering a murder investigation; Josh Mankiewicz looks back at a case that shattered a congregation and exposed the cost of their trust.

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.

A night of soccer and celebration turns tragic when one young Orlando City soccer fan is found dead at home the next day; police are left with a field of suspects and very few answers.

A lavish wedding at a mountain lodge ends in tragedy when two people are shot in their cabin; a mysterious stranger who seems to have vanished into thin air could hold the key to the shooting.

Rocky Mountain National Park rangers question whether a woman's fatal fall was an accident or the result of an act of violence.

Rocky Mountain National Park rangers question whether a woman's fatal fall was an accident or the result of an act of violence.

It was a bone-chilling snowy night when mother and professional dancer Stephanie Bruner went missing in the Colorado mountains. Police had three viable suspects in mind, but a complicated love triangle may have sealed her fate.

A successful entrepreneur is found dead on the side of the road; surprise clues are found during the autopsy, and investigators soon uncover a devious sex cult and a masterminded revenge plan that leads them to the one killer no one ever suspected.

After a woman disappears without a trace, her husband and her boyfriend are both quick to point fingers at the other; investigators must determine who is telling the truth and who is being framed for a brutal murder.

A teenage girl is found beaten to death at the neighborhood pool, launching her father on a mission to catch her killer that ultimately changes crime fighting forever.

A brutal attack leaves witness to a murder; but when the police find the killer, it turns out the intended victim, and the motive, were not what anyone imagined.

A father is bludgeoned to death and his wife is assaulted after an assailant breaks into their family home; as detectives sort through the evidence, an unlikely relationship emerges involving a suspect who has held a deadly obsession for years.

When a house fire in small-town Mississippi claims the life of a beloved woman, local law enforcement suspects foul play; investigators' hunt for the arsonist leads them to a suspect close to home whose greed knows no bounds.

In his own words, America's most sadistic serial killer describes his 1979 killing spree; Lawrence Bittaker, aka the Toolbox Killer, is silent about his crimes for 40 years, until he meets investigator Laura Brand, who records his conversations.

When police are called to a seemingly routine domestic disturbance at a mansion in Louisville, a bizarre tale unravels after one man reveals a body is buried in the basement.

As police in Tallahassee, Fla. work to solve the case of a young father gunned down in his apartment, they find evidence of a deadly sexual encounter and uncover a vengeful plot, ultimately proving that blood is thicker than water.

The murder of a beloved schoolteacher takes detectives from Kentucky to Florida, where an unexpected romance comes to light; as the investigation unfolds, relationships unravel, and a long con born of greed is unveiled.

A troubled woman turns her life around when she moves back home to the family farm; when her elderly mother disappears, police uncover a twisted web of deceit, betrayal and forbidden romance.

A parking lot shooting in the dead of night leaves detectives with a long list of suspects, but the killer hides in plain sight.

An Army vet survives two tours in Iraq, only to be gunned down in his own home.

When a successful Arizona businesswoman disappears on a holiday shopping trip, investigators hunt for a kidnapper; when the killer takes his secrets to the grave, however, the only chance of finding her is a psychic's mysterious vision.

A young couple sets out from a holiday visit but never makes it home as law enforcement search dangerous terrain fraught with derelict silver mines.

To prevent the exposure of a twisted secret, a seemingly solid marriage between two deeply religious people is destroyed, and two lives are lost forever in the cold-blooded killings of a mother and daughter.

The start of the worldwide COVID-19 pandemic coincides with the disintegration of a once-loving marriage, leading to a cross-country chase to ensnare a vicious murderer.

A quiet Wisconsin town is rocked by its first homicide in six years when an eccentric father of four is found dead in his basement.

A mysterious shooting of a religious family man leaves a community questioning if it was a drug-related slaying or a bloody family affair.

After a home invasion in Ohio leaves a corrections officer dead, investigators use controlled calls and an undercover sting at a motel to solve the case and expose a cruel plot with a bloody ending.

A man from Iowa is shot to death while sleeping in bed next to his fiancee; coincidences and quick thinking lead to surprising information regarding the killer's motive.

A man from Iowa is shot to death while sleeping in bed next to his fiancee; coincidences and quick thinking lead to surprising information regarding the killer's motive.

A week after disappearing from her home, Hannah Hill's body is found in the trunk of her own car.

A father is murdered in his bed, in the middle of the night; it seems strange to investigators that no one else in the house is hurt, including his new wife who was sleeping by his side; there are three witnesses in the house but no one sees a thing.

In 1994, convicted murderer Randolph Dial escapes from a prison in Oklahoma and takes the deputy warden's wife, Bobbi Parker, with him, then, 10 years later, Parker is found living with Dial on a farm in Texas.

A woman in Los Angeles is killed in an apparent botched burglary; nearly 20 years later, a detective discovers a clue that turns the case on its head; Josh Mankiewicz revisits a story with a twist that surprised him.

When a Brooklyn native is found shot to death in the backseat of his car in a rough Atlanta neighborhood, police have to figure out if trouble followed him south or if the killer is in his inner circle.

When a popular construction man in a tight-knit Texas town is found gunned down in his own home, it takes police a decade and a half to track down the killer.

Twin daughters find their mother stabbed to death in their quaint suburban home, and the pressure for detectives to deliver justice is on; but when the shocking truth behind the murder comes out, the Atlanta community is left stunned and heartbroken.

A retired Delta employee appears dead, stabbed dozens of times in her picturesque suburban home, stunning the Atlanta area; as detectives search for clues, they discover a note the victim left just before she died that leads them to her killer.

After a 23-year-old suburban Atlanta mother is shot and left for dead in front of her infant daughter, investigators unravel a complicated scheme involving someone close to the victim, shocking the Powder Springs community.

When world champion boxer Vernon Forrest is gunned down in cold blood, all hands are on deck to bring justice for the fallen Atlanta icon; APD detectives must figure out if this shooting was random or a result of the victim's celebrity status.

Young mother Elizabeth Ferrell goes missing in Texas as a body is found in Louisiana; as detectives connect the dots between the two cases, secrets rise to the surface and reveal a shocking tale of love, betrayal and revenge.

Firefighter Ben Amato is callously murdered, but the case goes cold; a jailhouse snitch, critical clue and seemingly unrelated homicide expose a sinister plot as investigators stay on the trail of a heartless killer.

Newly single Michele Davis is killed when her car careens off an Iowa highway; what looks like an accident is anything but, however, as investigators peel back the layers of her life and discover a motive for murder.

The sudden disappearance of Manjit Panghali sparks a massive search for the pregnant mother; investigators uncover a tight-knit immigrant community in shock, a family in mourning and a killer relationship exposed.

Jacquelyn Smith is stabbed to death in Baltimore, in what appears to be a random act of violence; as detectives dig deeper, they uncover a diabolical plan, vicious lies and a killer relationship.

After a naval reservist is gunned down in her car outside an Atlanta mall, detectives pour over video footage, phone records and forensic evidence, only to discover that the DNA sample found at the crime scene creates an unforeseen twist in the case.

In a new jailhouse interview, Crystal Mangum shares her side of the story, revealing what she alleges caused her then-boyfriend's death and the effect it has had on her to this day.

Jacquelyn Smith is stabbed to death in Baltimore, in what appears to be a random act of violence; as detectives dig deeper, they uncover a diabolical plan, vicious lies and a killer relationship.

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

After a naval reservist is gunned down in her car outside an Atlanta mall, detectives pour over video footage, phone records and forensic evidence, only to discover that the DNA sample found at the crime scene creates an unforeseen twist in the case.

When a young entrepreneur is shot and dumped in a rural well outside Atlanta, detectives search frantically for clues as to who committed the horrific murder.

When a graduate student is shot dead outside of her North Carolina home, a 911 caller leads detectives to believe the victim's fiance is the key to solving the case.

When a graduate student is shot dead outside of her North Carolina home, a 911 caller leads detectives to believe the victim's fiance is the key to solving the case.

A risky undercover operation in a rough prison could expose a suspected serial killer's secrets.

A Philadelphia murder reveals decades of misconduct in the city's criminal justice system and raises questions aout whether police caught the right person; key insiders in the case speak out for the first time on national television.

Stuntman Garrett Warren was accustomed to living on the verge of death, but no amount of Hollywood violence can compare when he finds himself shot four times; when the smoke clears, investigators find themselves in a real Hollywood mystery.

After Lisa Zeigert is killed, her family keeps the case in the public eye for decades; Andrea Canning reflects on the harrowing mystery and discusses the inspiration she's drawn from Lisa's loved ones.

A teen makes a 911 call claiming his grandmother shot him, but detectives uncover drugs and deep familial conflicts spanning a generational divide, leaving a jury questioning who to believe.

After best friends spend an evening Christmas shopping, the night ends with one man fatally shooting the other; the survivor claims self-defense, but his foggy memory, forensic evidence and witness accounts suggest there could be more to the story.

When two young women are brutally murdered in Phoenix, friends and family wait decades for answers; when advancements in DNA reinvigorate the case, police discover the killer has been hiding in plain sight.

Analyzing the investigation into the gruesome murder of an esteemed Southern doctor; an anonymous tip leads police to uncover a pattern of lust, greed and a complex dynamic between twin sisters.

Updates to an episode with new details and interviews; the son of a wealthy psychologist finds his father murdered and points the finger at his mother; investigators delve into the marriage, revealing darkness hidden behind a facade.

Missouri police are called to the home of a prominent judge's daughter to find her husband dead on the couch; while the crime scene suggests a break-in, investigators uncover evidence of a scandalous murder plot driven by greed.

When a beloved Florida mother is found brutally shot to death and her newborn missing, investigators race against the clock to track down a mysterious visitor whose motives prove sinister.

Serenity in the Montana mountains is shattered when a man is shot to death on his neighbor's land; detectives learn of an escalating dispute over trail access and reenact the shooting to discover if claims of self-defense match the evidence.

A Wild West reenactor is found murdered in his private Arizona ranch; police race to find the killer of the beloved showman; as investigators connect the dots, they realize the cold-blooded mastermind is lurking close to home.

Tausha Morton sits down to clarify what led to her ex-husband's death; she speaks out against the triggerman, alleging that there was never a murder conspiracy; she discusses how she feels being behind bars for life.

After a naval reservist is gunned down in her car outside an Atlanta mall, detectives pour over video footage, phone records and forensic evidence, only to discover that the DNA sample found at the crime scene creates an unforeseen twist in the case.

Jacquelyn Smith is stabbed to death in Baltimore, in what appears to be a random act of violence; as detectives dig deeper, they uncover a diabolical plan, vicious lies and a killer relationship.

Tausha Morton sits down to clarify what led to her ex-husband's death; she speaks out against the triggerman, alleging that there was never a murder conspiracy; she discusses how she feels being behind bars for life.

A feud between neighbors in the quiet suburb of New Brighton, Minn., turns deadly when one man's passion for local wildlife drives his neighbor to snap; investigators must determine whether the shooter acted out of self-defense or bitter revenge.

When an eight-year feud between neighbors in Santa Clarita, Calif., ends in a violent confrontation that leaves one man dead, detectives investigate if the shooting was a tragic case of mistaken identity or a calculated murder plot.

After fishermen find the body of a young woman in the waters off Cape May, detectives discover the chains binding her ankles may be the missing link to solving the mystery of who put her there.

Investigators discover a grisly bait freezer, a fishing boat, a missing anchor, a diamond ring and more after a Florida couple goes missing.

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

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

A couple's anniversary celebration ends in murder during what appears to have been a home invasion, but investigators believe the suspect might be connected to the victim.

After a night out in New York City with his new girlfriend, 56-year-old businessman Charles Butler simply vanishes, and his panicked children only receive confounding texts in response to their inquiries.

Investigators discover that moments after teenage social media star Alexis Murphy posts her final tweet before vanishing, she is captured on surveillance footage at a local gas station.

Newly single Michele Davis is killed when her car careens off an Iowa highway; what looks like an accident is anything but, however, as investigators peel back the layers of her life and discover a motive for murder.

Firefighter Ben Amato is callously murdered, but the case goes cold; a jailhouse snitch, critical clue and seemingly unrelated homicide expose a sinister plot as investigators stay on the trail of a heartless killer.

Young mother Elizabeth Ferrell goes missing in Texas as a body is found in Louisiana; as detectives connect the dots between the two cases, secrets rise to the surface and reveal a shocking tale of love, betrayal and revenge.

Jacquelyn Smith is stabbed to death in Baltimore, in what appears to be a random act of violence; as detectives dig deeper, they uncover a diabolical plan, vicious lies and a killer relationship.

After returning from several tours of duty abroad, a soldier is found beaten to death on his own army base in Hinesville, Ga; Investigators soon discover the greatest danger may have been waiting for him closer to home.

When Fort Lauderdale, Fla., police respond to reports of a deceased male who fell down the stairs, their investigation turns to a homicide case; with multiple witnesses and an attorney on scene, investigators must dig deep to get to the truth.

After a member of the Indiana cycling community is found mysteriously murdered, medical examiners discover the victim ingested potentially lethal amounts of poisonous mushrooms; Police must work to uncover the culprit behind this bizarre crime.

A local Washington man's life is at stake when detectives are alerted to a murder for hire plot against him; they set up a sting operation to catch the ruthless mastermind before it's too late.

At a VA hospital in West Virginia, a string of severe hypoglycemic events results in the deaths of several patients; after an investigation ensues, a pattern reveals the work of a serial killer lurking within the halls of the hospital.

Decades pass before investigators utilize advancing technology to reveal the clown killer who shot a mother in Florida.

When a young Missouri couple is found shot to death on their front porch, the victims' past quickly reveals several suspects close to home; investigators press for a confession from one of the co-conspirators to expose a master manipulator.

The disappearance of a devoted father reveals a treasure trove of family secrets and exposes a twisted plot driven by greed.

When 18-year-old Anjelica AJ Hadsell disappears, the investigation into her inner circle reveals a sinister betrayal.

The sudden and violent death of a young teenage mom in Santa Fe uncovers a love triangle; while detectives have multiple suspects in their grasp, they are taken aback when the true murderer shows up on camera.

When Nichole Payne and her son Taylor are found dead in their home, investigators wonder if this is a murder-suicide or if someone wants it to look that way. The mystery takes nearly a decade to unravel.

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.

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

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.

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

A 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.

It is common for long-haul truck driver Lloyd Ford to be gone for stretches, and when he disappears, it doesn't raise many flags; at least two people know where he is, and they guard the secret for 27 years, but the truth is about to be revealed.

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.

After a 23-year-old suburban Atlanta mother is shot and left for dead in front of her infant daughter, investigators unravel a complicated scheme involving someone close to the victim, shocking the Powder Springs community.

When world champion boxer Vernon Forrest is gunned down in cold blood, all hands are on deck to bring justice for the fallen Atlanta icon; APD detectives must figure out if this shooting was random or a result of the victim's celebrity status.

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

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

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

When soon-to-be college freshman Heather Maples is discovered murdered in her own bed, investigators discover a remarkable clue preserved at the scene.

Surveillance footage reveals a mysterious figure tracking 18-year-old Kelsey Smith's movements when she goes shopping for a present for her boyfriend but never returns home.

Natalee Holloway disappears from Aruba in May 2005, and her father Dave never stops looking for her; he receives a new lead that could be the key to solving the 12-year-old mystery, but he has suspicions about the source.

Dave Holloway and a team of investigators pursue a lead that may shed light on his daughter's disappearance, with the goal of obtaining a taped confession and concrete evidence.

The sting operation in New Orleans continues as the investigation team begins running out of time to obtain the necessary information from the co-conspirator.

TJ and his team head to Aruba to begin phase two of their investigation - attempting to obtain DNA evidence from Natalee's alleged burial site; Dave must convince his informant to go the extra mile.

TJ races to the location where the co-conspirator claims he dug up Natalee's remains in 2010; working with the Aruban authorities, they search for DNA that could lead to convicting those involved in Natalee's disappearance.

After two years following a lead, the investigators finally have evidence in hand that could answer the 12-year-old mystery of what happened to Natalee Holloway.

When hikers find a 21-year-old UCLA student's body in a Los Angeles-area train tunnel, detectives wonder if his interest in an alternative religion is connected to his murder.

A small-town girl moves to Las Vegas, where she finds a new career and new love; soon after, however, she vanishes, and within days, police find her body; finding who killed her will be a tougher mystery to crack.

A young woman is abducted in Ecuador, and as her family and investigators race to save her, she plots to save herself; her daring plan involves a little something hidden at the bottom of her bag, but time is running out.

She was a small-town girl from rural Wisconsin; he was a Chicago superstar, a hometown hero with the legendary Bears; together, they were expecting their first child, but no one was expecting their tale to end in the deadly way that it did.

The man known as the Happy Face Killer viciously strangled eight women and dumped their bodies along the road.

The life and crimes of master manipulator, Drew Peterson.

The trial of Scott Peterson who was convicted for the murder of his wife and unborn child.

Detectives are plunged into a world of occult worship and shadowy characters as they try to solve the brutal murder of a promising UCLA student found butchered in a railroad tunnel with a diabolical reputation.

The shocking murder of a Van Nuys newlywed goes cold for 23 years until detectives bent on justice revisit the brutal evidence, including a bite mark on the victim's arm that leads them to the most unlikely killer.

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to reexamine the mysterious death of Las Vegas casino magnate Ted Binion.

A chance encounter on the Pacific Coast Highway with a woman he first spoke to in a jail cell leads Keith Morrison to reexamine the mysterious death of Las Vegas casino magnate Ted Binion.

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

After asking to drop off a book off at a friend's house, 15-year-old Danielle Locklear never returns home, but a cryptic clue leads investigators to a secluded creek.

While 24-year-old Willard Grandstaff toils away at his convenience store job, he dreams of what the future holds; on Sept. 27, 2004, his standard overnight shift becomes his last.

In 2013, college sophomore Alyssiah Wiley is spotted on surveillance footage leaving Eastern Connecticut University campus, then she disappears; authorities follow a digital trail of clues.

After Hurricane Ivan tears through the Floribama region, the discovery of a body in a burnt-out home in Chunchula, Alabama, launches an investigation that reveals an unexpected evil in the community.

The owners of an Alabama country store are brutally murdered in their home, and detectives must sort through a maze of bootlegging, gambling and family secrets to uncover the killer.

Investigators from three separate counties along the Floribama border team up with the daughter of a missing man to uncover how the fireworks at a Fourth of July celebration ended in murder.

A 40-year-old Minnesota woman is shot to death in her bed while her husband and teenage daughter are home, leaving investigators to wonder who would want her dead.

Kelsey Berreth vanishes after she was last seen grocery shopping on Thanksgiving; the case makes national headlines, but the secret behind Kelsey's disappearance is lurking much closer to home.

A college student is found murdered in a residential neighborhood; the police search for the truth, they are stunned to learn that one of their own might be involved.

Two years after the disappearance of his wife, Josh Powell kills his two sons and himself.

A high-society hustler with a flair for spinning lies, the con man known as Clark Rockefeller is accused of murder; to solve the mystery, cold-case detectives begin to retrace his steps along a decades-old trail of deceit.

Friends think something isn't right after the mysterious disappearance of a Colorado rancher and spend years fighting for answers.

She was an A-lister in a town famous for glitzy ski resorts and celebrities; when socialite Nancy Phister was murdered, the news reverberated around Aspen; Nancy had a long list of friends, but she also had enemies.

Linda Watson is a single mom raising a beautiful daughter when she disappears; then, suddenly, Linda's mom goes missing too, along with another friend; police are convinced the three cases are connected, but unraveling the mystery takes years.

When a cherished Laguna Niguel resident is beaten to death in her home, detectives must peel back the layers of her life to get to the bottom of the murder mystery.

The disappearance of a woman sends her neighbors and loved ones into a tailspin, but the search for answers leads investigators through three states with a dramatic conclusion no one saw coming.

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

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

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

Twenty-four-year-old Lamont Adair had just earned a shot to play professional basketball, but when he's gunned down in broad daylight, the community goes silent.

Laura Johnson, a mother of five, moves in with her boyfriend in Billings, Mont., then suddenly stops communicating with her family; her son rushes halfway across the country to learn why and finds disturbing clues that explain how she vanished.

A Bahamas-bound charter boat is discovered 140 miles off course; investigators wade through blood evidence and accounts of a possible pirate attack in the search for survivors and answers.

The police get word of a woman being swept off her boat by a rogue wave in Newport Beach, Calif; search teams race to find her before it's too late; detectives soon suspect that rough seas weren't the real culprit.

20 years in the making, this special reexamines the Internet's first murder trial, revealing a twisted seductress with a skill for manipulation; after time in prison, she has a second chance at life and love with a stunning final update in her case.

A hardworking family man is shot to death in front of his wife during a morning walk with their dog; as police determine if the attack was random or targeted, they uncover a web of deceit spanning across state lines.

A 15-year-old missing persons case is reinstated when an anonymous tipster leads police to unearth a grisly murder; as witnesses come forward, North Carolina investigators must try to piece together the crime and bring the killer to justice.

When an officer discovers a man dumping bags of more than 60 body parts into the Passaic River in East Rutherford, N.J., investigators work to identify the victim and corroborate the chilling story of a confessed killer.

In May 2017, a teenage girl dies from an apparent suicide; Utah investigators suspect that there's more to the scene than meets the eye, and a close friend may have helped her end her own life; as evidence comes to light, a darker truth is revealed.

Investigators in a rural mountain community are baffled by the accidental shooting of a young mother, but her determined daughter's decadeslong quest fractures the so-called facts to reveal a darker story.

All signs point to homicide when a body is discovered in an upscale Boston suburb, but the clues send investigators on a journey to discover an unbelievable truth that seems more like the plot of a movie.

A once prominent heart surgeon is found dead in his bed after suffering mysterious health conditions.

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

For more than 30 years, Ohio investigators have searched for answers in the murder of 10-year-old Amy Mihaljevic; the details of the case still haunt Josh Mankiewicz and investigators, who ask for helping solving the crime.

An intimate interview with the parents of Gabby Petito, shedding new light on the case that gripped the nation and became a global online obsession.

An advocate for missing and murdered Indigenous women searches for answers in the disappearance of her niece and exposes cracks in law enforcement; Andrea Canning looks back on this important story, one that became her passion project.

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

A loving grandfather and the life of the party, Harvey Huber's vanishing forces his small-town into an anguished search to find him; a late-night hunch from a member of the vaunted Texas Rangers reveals a shocking betrayal of love and friendship.

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

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

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

Police discover clues that suggest Michael Sandy, an interior designer who recently moved to New York to find a husband, was targeted in a hit-and-run accident on a busy highway.

Police follow Julia Jacobson's digital footprints to uncover the truth about her final moments when she disappears while driving across California on a Labor Day road trip with her dog.

When a man is found shot dead on a roadside in rural Ohio, it looks like a hunting accident; more outdoorsmen are found gunned down in neighboring counties; someone is hunting the hunters.

In rural Michigan, a young woman is found drowned in a lake, her baby missing; however, they're not the only locals who've recently vanished only to turn up dead; one elusive man is at the center of it all.

When Israel Keyes is caught for the murder of 18-year-old Samantha Koenig, police have no clue what they've stumbled upon; after intense games of cat and mouse, the FBI uncovers one of the most calculated serial killers it has ever encountered.

When 21-year-old Julie Gonzalez disappears in Austin, Texas, her family is determined to find her and never gives up; after a slow start, law enforcement uses a national television appearance and a gaming device to expose the deadly truth.

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

The unexplained disappearances of a young mother and her two sons in 1980 lead investigators on a three-decade quest for justice, exposing multiple murders and a homicidal love affair that left untold suffering and carnage in its wake.

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 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.

When an Indiana collector of race car memorabilia is found shot in broad daylight with no eyewitnesses, detectives follow the evidence to reveal the true mastermind behind this twisted murder plot.

A loving father and husband of an aspiring gospel singer is found shot to death in the passenger seat of his car; when investigators discover a previous attempt on his life, they expose a group of killers driven by greed.

After a hardworking family man is gunned down in his driveway, a domestic dispute leads investigators to an unlikely culprit and unravels a history of violence, lies and betrayal.

A spunky grandmother and former bail bondswoman is a no-show at work, leaving friends and family desperate for answers. As investigators focus on felons from her former career, they soon discover she may not be the only one missing.

When a California mother wakes to find the door wide open and her daughter missing, law enforcement travel the country to find her until they discover a dark plot that began at the teen's doorstep.

Gabriel is caught in the middle of a custody battle; Elizabeth makes a shocking confession.

The police search for Gabriel in San Antonio; Elizabeth and Tammi story's conflict.

The verdict is revealed; only one person can tell the public if Elizabeth got away with murder.

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

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

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