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.

When a rising star in Atlanta's fashion scene is murdered, detectives must determine if the shooting is related to a business deal gone bad or if it's a personal vendetta; the team cracks the case and is shocked when it discovers the mastermind.

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.

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

Wealthy dentist Kirk Turner tells police he killed his wife, Jennifer, with a pocket knife after she impaled him with a spear.

A cosplay model makes a frantic 911 call and claims that she woke up to find her boyfriend stabbed to death; surveillance footage from around the home leads detectives to the killer,it raises the question of whether it was self-defense or murder.

A young mother in Utah vanishes and the only suspect, her husband, acts suspiciously; Stephanie Bauer examines never-before-seen home video recordings that shed light on the dramatic events surrounding the disappearance of Susan Cox Powell.

A defensive husband flees justice after the disappearance of his wife drags both of their families down deeper into destruction and tragedy.

A Philadelphia murder reveals decades of misconduct in the city's criminal justice system and raises questions about whether police caught the right person.

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

When a woman returns two days after being reported abducted, authorities believe it's a hoax until a similar crime forces them to take another look.

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

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.

A district attorney in Pennsylvania went missing in 2005 under mysterious circumstances seven years after he investigated sex-abuse allegations made against Penn State football coach Jerry Sandusky.

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

When the half-dressed, partially frozen body of a Navy veteran is found lying in a ditch, rumors and lies will challenge detectives' efforts to lay bare the truth behind the chilling death.

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

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

When two Ghanian immigrants are discovered murdered in their upscale Maryland home, police are confronted with bizarre evidence that motivates them to take a closer look at the mystifying rituals of voodoo.

Investigators in Gresham, Ore., are left with a gruesome crime scene, an assailant on the loose and a missing child after the victim of a stabbing is able to call 911 in a last attempt to save her own life.

After the burned body of a local man is found in rural Missouri, the homicide goes unsolved for nearly two decades until a twisted murder plot is brought to light.

Soon after Cathy and Jeff Lamb rekindle their marriage, Cathy is found savagely beaten to death in their home; with the couple's three dogs as their only witnesses, detectives untangle a number of complex relationships to find her killer.

When 78-year-old Ina Gross is viciously murdered, suspicion falls on one of her own children; the siblings stand together until the truth is revealed.

Real estate developer Gary Triano lived large and when he was murdered there were whispers of a mob connection, an angry investor, or a mad ex, but the mystery took nearly two decades to unravel.

Real estate developer Gary Triano lived large and when he was murdered there were whispers of a mob connection, an angry investor, or a mad ex, but the mystery took nearly two decades to unravel.

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.

An Army veteran kills the head of his girlfriend's household after confronting him about sexually assaulting the young woman; after hearing a recording of the fight, investigators must decide if this was vigilante justice or self-defense.

After suffering years of abuse, a Missouri woman claims she had no choice but to kill her husband during a gun struggle; when the autopsy is performed on the body her mother helped her bury, however, her self-defense story comes into question.

When an inferno leaves four family members dead, investigators discover a business dispute between two immigrant families that may be at the root of the incident; they are confronted with a pair of brothers who refuse to take no for an answer.

The Colegroves are beloved in their small town, but when they're brutally murdered in what appears to be a targeted attack, a bitter dispute within their family is revealed, pitting the surviving brothers against each other.

A mother is found savagely murdered in her upscale home, leaving a father and son to blame each other; their airtight alibis lead detectives to a murder plot involving an estranged sibling with nothing to lose.

The owner of an extreme-sport venture is found shot dead in his warehouse; police suspect a history of bad business may be to blame, until a contentious family past begins to cast doubt on his devoted son's innocence.

A San Diego mother suddenly vanishes in 2014; nearly two years later, her body is found in San Diego Bay, but medical examiners say she has only been dead for a month or two.

A dancer is murdered in her Virginia home; after interviewing a series of suspects, detectives realize the case is much more complicated than previously thought.

It was called the trial of the century and, decades after the polarizing case, questions remain; hear answers and insights through interviews done over the years, rare footage and revealing conversations with key players who offer new details.

A car belonging to a missing man erupts in a blaze, leading to clues regarding his whereabouts.

An in-depth look at the journalists who exposed the dangers of cult leader Jim Jones.

When 19-year-old Anton Black dies while being taken into police custody, the community seeks justice; a yearlong Dateline investigation looks at missed warning signs and the officer at the center of the case.

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

Oscar Pistorius shoots and kills his girlfriend just eight months after competing in the London Olympics, telling police that he believed she was an intruder, and he was acting in self-defense.

An investigation of abuse allegations against one of the owners of the religious reform school Circle of Hope.

Rapper Meek Mill discusses controversies surrounding the criminal justice system, the parole system, wrongful convictions, challenges faced by law enforcement, alleged police abuse, and other topics.

Kelly and Steve Spingola try to solve the mysterious murder of a father beaten and shot to death in his home with his 6-year-old daughter asleep nearby; the key to identifying his killer may lie in the secret audio recordings found in his attic.

Kelly and Tonya Rider investigate the shocking murder of a 91-year-old grandmother who was stabbed nearly 40 times in her bed; new DNA technology may help identify her killer and reveal a tragic family secret.

The murder of a California mother beloved by four men reopens a mystery surrounding another young woman's death that occurred decades earlier.

The murder of a California mother beloved by four men reopens a mystery surrounding another young woman's death that occurred decades earlier.

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

Seventeen-year-old Anthony Templet calls 911, confessing to shooting his father in self-defense; with no signs of a physical attack, authorities suspect murder; as the investigation unfolds, the dark underbelly of the family is exposed.

A mother of three shoots and kills her neighbor in a home invasion, leaving a small community grasping for answers; while the neighbor's parents question this apparent act of self-defense, police find a journal that leads to the truth.

The tranquility of Atlanta suburb Powder Springs is shattered forever when two beautiful young real estate agents are found brutally murdered inside a picturesque model home; detectives race to catch this ruthless killer before he strikes again.

The teenage nephew of Mayor Keisha Lance Bottoms is assassinated with a hail of bullets, wreaking havoc within his powerful family and the city of Atlanta.

Wilton Manors, Fla., investigators search for motives after a beloved father is found strangled and battered in his driveway, until an unsuspected confession reveals a complex web of deceit.

Authorities are left stunned when stories of mysticism and conspiracy come to the front while they investigate the disturbing murders of an elderly Vietnamese couple in Texas.

Robbery seems to be a plausible motive when a North Carolina man is found shot to death in a roadside ditch, but the case remains cold for years until a mysterious letter reveals a more sinister motive than anyone could have imagined.

After the deceased body of a St. Petersburg, Fla., woman is found in an abandoned trailer, investigators search for answers and uncover the dark truth of what happens when someone is pushed too far.

After a single mother is found murdered in her Kentucky home, detectives follow a twisted trail littered with lies to identify the mastermind behind this vicious killing.

A peaceful town is rocked by the murder of the young wife of a preacher's son; the investigation leads detectives to two brothers: one with a deadly ambition, and the other willing to do anything to earn his brother's love.

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

Single mother Nicole Halpin is murdered in her home and her two children witness the attack, but justice will prevail when detectives sift through a list of Nicole's admirers to find her killer.

Keiona Braxton excitedly awaits the birth of her first child, but when detectives are called to her burning apartment, they uncover a scene of unparalleled violence and use the clues on Keiona's own body to point them to the killer.

A couple take a scuba-diving trip to the British Virgin Islands; on their last dive, one of them surfaces, but the other does not; police quickly suspect the drowning was no accident; Dennis Murphy gives this unforgettable story a second look.

They were two beautiful families living out their dreams, but gunshots in a parking lot reveal an ugly truth; detectives uncover three lives tangled in a love triangle.

A series of reports chosen by.

Popular TikTok creator Ali Abulaban and his beautiful wife Ana seem like they have it all, but behind the picture-perfect life portrayed online is a relationship filled with domestic violence that falls apart when the abuse takes a deadly turn.

When social media posts heighten jealousy within a teenage love triangle, the teens learn that posts are not easily forgiven.

Sarah Ludemann finds out she's been sharing her boyfriend with another girl.

A chance meeting at a nightclub ends in murder; those involved in the gruesome crime thought they had buried the secrets of the past, but a relentless team of investigators will stop at nothing to unearth the truth.

A chance meeting at a nightclub ends in murder; those involved in the gruesome crime thought they had buried the secrets of the past, but a relentless team of investigators will stop at nothing to unearth the truth.

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.

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.

A former Marine is fatally shot by his neighbor in broad daylight; the shooter claims self-defense, but eyewitnesses state he was the aggressor; when investigators uncover a feud between the two, it calls both of their motivations into question.

Hector Campos fatally shoots neighbor Ana Weed after an argument on their property line; while Hector takes to national TV to plead self-defense, Ana's family reveals to investigators a tale of betrayal, secret spouses and a fateful escape to Mexico.

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.

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.

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.

A documentary filmmaker sets out to tell the story of the biggest serial killer case in California history and uncovers a terrifying tale that begins with the disappearance of Paul Cosner.

With the discovery of Leonard Lake's cabin, investigators find the hidden cell where Lake kept his victims; they also unearth Lake's recorded manifesto, which details his depraved plans for Operation Miranda.

An international manhunt ensues when Leonard Lake's accomplice, Charles Ng, flees the country; the victims' families, including Paul Cosner's sister, fight to bring Ng to justice and answer for the crimes he committed with Lake.

In a jailhouse interview, Traci Wolfe reveals the catalyst that sparked an uncontrollable rage and ended in her husband's gruesome death; holding nothing back, she now reflects on the crime that landed her in prison for life.

Serving a life sentence for the brutal stabbing of her own mother, Taylor Marks discusses the murder on camera for the first time ever; she claims she wasn't the mastermind behind the crime, but she knows who is.

Haunted by the events leading up to her conviction, Jamie Grachek is ready to tell her story for the first time after eight years behind bars and explains her version of what happened the night a violent home invasion left her ex-husband dead.

After leads dry up in a missing person case, detectives in Ennis,Texas, discover a severed body part at a nearby lake; after confirming the DNA match, they begin to uncover the rippling relationship that led to the death of a beloved father.

Authorities are puzzled when a beloved Georgia grandmother is shot execution style, but as the investigation unfolds, a once close-knit family turns against itself.

The body of a teen is found at a local party spot and theories surrounding her death spread, but the case goes cold for 30 years, until the investigation heats back up.

A beloved Missouri couple is thought to be swept away in a record-breaking deadly storm, but when a closer look at the family farm points to foul play, law enforcement searches for clues long since washed away.

When a Michigan mother disappears on an afternoon walk, investigators pin all hope on their sole eyewitness: a 10-year-old boy who may have witnessed the unthinkable.

Officers must determine if there is more than one killer at the same time when dozens of women are murdered around the city of Baton Rouge, La.

A killer is behind bars after DNA connects him to seven victims in Baton Rouge, La., but the murders don't stop after his arrest; new fear sweeps the city and law enforcement must act quickly to find a second, and maybe even a third, serial killer.

When the Hillside Stranglers are caught police realize they still have another serial killer running rampant in Los Angeles; he tortures and toys with his model victims while keeping pieces of their jewelry as he snaps their last photo ever.

Texas authorities have a killer riding the rails and leaving a literal trail of bread crumbs after eating at victims' tables; when more murders are linked, the FBI names a Most Wanted suspect and a national manhunt for The Railroad Killer ensues.

Amber Dubois disappears in the San Diego area and the search turns up nothing. A year later, Chelsea King disappears in a neighboring town. Investigators are determined to find out if the two cases are connected.

Amber Dubois disappears in the San Diego area and the search turns up nothing. A year later, Chelsea King disappears in a neighboring town. Investigators are determined to find out if the two cases are connected.

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

A woman continues searching for answers after the investigation into her daughter's murder goes cold.

When a young woman is found dead in a field on the outskirts of Green Bay, Wis., a fitness tracker helps detectives solve the mystery.

Newlywed Dalia Dippolito comes home from the gym to find out her husband has been killed; in a case Dennis Murphy will never forget, almost nothing is as it seems; he explores whether Dalia was a pawn in a hoax gone wrong or simply diabolical.

Debbie Kelly and Lars Itzo make their marriage of opposites work; when Debbie is killed, there is no question about who shot her, yet the explanation of why is one of the most confounding Andrea Canning has heard.

Featured in the first-ever episode of.

Sabrina Zunich tells the story behind her foster mother's murder, describes the secrets that led to it, details why she snapped, and discusses how she feels about it now.

The Atlanta club scene is shaken when the wife of a popular DJ is executed in her sleep; detectives must determine if the victim had any enemies or if her murder was part of a string of killings stemming from her husband's high-profile job.

A woman in an exclusive Atlanta neighborhood is shot in her bedroom while calling 911; when detectives investigate the crime, they discover that her murder is related to an elaborate crime ring that upends the sense of safety in this tranquil hamlet.

When the body of an Atlanta police lieutenant is discovered floating in a lake and riddled with bullets, detectives work tirelessly to bring justice to their fallen comrade.

When a tech mogul is found bludgeoned to death in his lavish Roswell bedroom, detectives quickly compile a long list of potential suspects; police ultimately zero in on one scorned lover who wouldn't take no for an answer.

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.

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.

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.

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.

Jaw-dropping, evil stories of love that sours and breakups that turn murderous.

Investigators, witnesses, reporters and loved ones who have direct connections, highlight the horrifying murder cases of Atlanta.

Popular TikTok creator Ali Abulaban and his beautiful wife Ana seem like they have it all, but behind the picture-perfect life portrayed online is a relationship filled with domestic violence that falls apart when the abuse takes a deadly turn.

Atlanta's thriving hip-hop scene is stunned when up-and-coming rapper Lil' Phat is executed in broad daylight; the case takes detectives into a world of mobsters and kingpins where the victim's lyrics may have foretold his demise.

The shooting death of Brad McGarry, a gay coal miner in Bellaire, Ohio, has detectives suspecting a hate crime, but when a shocking secret comes to light, it reveals an unexpected motive for murder.

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

A pair of double homicides in Nebraska, five years apart, lead police to fear a serial killer may be on the loose.

A pair of double homicides in Nebraska, five years apart, leads police to fear a serial killer may be on the loose.

The neighbors enjoy mixing business with pleasure then a murder makes them face the reality that a killer is in their midst.

In Pembroke Pines, Fla., a rookie detective reopens a 15-year-old case about the disappearance of young father David Jackson.

Investigators are suspicious when a wealthy former radio DJ mysteriously disappears from his yacht in the Pacific Ocean.

A Mediterranean cruise meant to rekindle the love between a woman and her ex-husband leads to her disappearance; the investigation reveals secret recordings and an undercover hitman; Josh Mankiewicz reflects on the cold-blooded crime.

A killer targets law enforcement personnel.

A man snaps after a childhood trauma is triggered.

When a beloved woman in North Carolina is found stabbed to death in her own home, investigators uncover an unnerving history of harassment carried out by a killer blinded by jealousy.

Investigators work to uncover the truth behind a local church scandal in order to pin down a most unlikely suspect after a young Texas teacher is found axed to death on Friday the 13th.

When a firebomb attack destroys the home of two sisters, police turn to the neighborhood for answers, but the high-profile case takes an odd turn once detectives realize they have a homicide on their hands and the culprit is much closer to home.

After a psychic dream leads detectives in Florida to the body of a missing nurse, the ensuing investigation uncovers a series of brutal betrayals exposing a vengeful killer fueled by jealousy.

The investigation of a young gamer's murder begins with his mother's heartbreaking 911 call but when detectives find a clue inside evidence left at the crime scene, the case turns into a multi-state search for a heartbroken suspect.

When a young woman is found mysteriously gunned down off a remote highway, Michigan detectives look into the victim's past for answers, uncovering a scandalous web of infidelity and betrayal.

When a devoted husband and father is found shot to death on his bathroom floor, the case is quickly ruled a homicide. As a key witness starts changing their story, detectives must determine if this was an act of self-defense or premeditated murder.

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.

A wealthy couple is brutally attacked on their country estate just outside Atlanta; as detectives scour the property for leads, they discover a dark secret, unbeknownst to the community, that multiplies their suspect list tenfold.

A charismatic young woman meets a dynamic and handsome man at an Orlando nightclub, and it seems like a perfect match, but a secret marriage and a lover who just can't let go spells doom for two innocent victims.

After 25 years of a mostly beautiful marriage, a woman loses her husband in a brutal killing inside their own home; what at first seems to be a robbery-gone-bad is revealed to be a vicious and carefully plotted murder.

In a jailhouse interview, Traci Wolfe reveals the catalyst that sparked an uncontrollable rage and ended in her husband's gruesome death; holding nothing back, she now reflects on the crime that landed her in prison for life.

Serving a life sentence for the brutal stabbing of her own mother, Taylor Marks discusses the murder on camera for the first time ever; she claims she wasn't the mastermind behind the crime, but she knows who is.

A decorated war hero is found in his home, the victim of an apparent drug overdose. Investigators uncover a twisted story of fraud and betrayal that leads to a stunning conclusion.

An 80-year-old woman is found in her home lying in a pool of blood; her death is ruled an accident, but her family suspects foul play.

The investigation into the death of a woman whose remains were found in her Frisco, Texas, garage leads detectives to a series of suspects with connections to the victim's complicated and secretive life.

The investigation into the death of a woman whose remains were found in her Frisco, Texas, garage leads detectives to a series of suspects with connections to the victim's complicated and secretive life.

Family man Jack Jessee is murdered in his home, but the case goes cold until a dogged detective unravels a conspiracy and pins down the perpetrators.

Police believe the discovery of a body in a Florida backyard ends the desperate search for a missing woman, but it only deepens the mystery.

When a popular librarian vanishes after a night of dancing in Kentucky's capital city, the investigation focuses on family secrets, but police must unravel a different kind of secret to get to the truth buried in one of the city's parks.

Detectives discover the badly beaten body of a single young woman left bizarrely staged on her bed; fear in the community grows amid a rash of nearby murders until police are handed a break when a fresh look at old evidence points to the killer.

A beloved teacher and mother of four silently vanishes in the middle of the night; a blood-soaked bedroom and lakeside discovery point police to a killer close to home until mysterious tracks in the mud lead to a culprit no one suspected.

The lines between medical mistakes and murder are blurred when a devious and defiant doctor refuses to change his ways; a chilling investigation ensues into a string of bizarre deaths at an Arizona cosmetic surgery clinic.

In the midst of the emerging opioid epidemic, investigators in Los Angeles look into a cluster of mysterious overdose deaths of young men in their 20's and discover a Doctor who uses her prescription pad to line her pockets and kill her patients.

When a man is ambushed by a firestorm of bullets outside his home, investigators follow a twisted trail of suspects to a vindictive mastermind.

A woman's innocence is called into question after her husband dies from a mysterious malady and encourages detectives to take a deep dive into her past.

An investigation into the murder of a military hero tests the bonds of military camaraderie and unravels a myriad of secrets, lies and hidden identities.

The discovery of a body in a wildlife management area launches a murder investigation that forces a group of friends into the hot seat; when police think they find a surprising clue and possible hidden message the case breaks wide open.

When a body is discovered in the trunk of a burning car, police in Ohio sift through the ashes for clues; as the years slip by without an arrest, the killer may have evaded capture.

After an endearing World War II veteran and family man is laid to rest from apparent natural causes, a surprise witness surfaces with murder accusations, sparking a police investigation into a devious predator.

When a household is targeted by gunfire twice in a short amount of time, investigators in rural Missouri sift through a community in search of a family's enemies, which leads them to a mastermind pulling strings.

An investigation into the mysterious death of a loving mother leads authorities to uncover a diabolical plot hatched close to home.

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.

On Nantucket Island, Mass., a couple's connection is instantaneous, but their summer romance takes a tragic turn; it seems like an open-and-shut case, but there's a surprise in store.

Jaw-dropping, evil stories of love that sours and breakups that turn murderous.

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.

A woman accused of attempting to hire a hit man to kill her husband.

Months after a woman and her husband come down with the same mysterious illness, the woman dies after experiencing the same symptoms; old recordings reveal the twisted truth about her demise.

Detectives find a message written in blood during a murder investigation.

A weekend getaway at a Reno resort becomes the center of a mystery when a respected college professor disappears; police learn that the answers may lie buried beneath desert sands hundreds of miles away.

A former judge retires to Florida and becomes the center of a mystery when he vanishes; police must unravel the possible connection between his disappearance and a ghastly discovery found buried at an abandoned golf course.

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

After three ruthless murders and a monthslong spree of armed robberies, police in Fort Worth, Texas, race to stop a young man intent on inflicting pain, his honor student sibling and a second set of brothers.

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 bank executive tries to rob his own bank; investigators think it's an inside job but eventually learn the crime is connected to a spree carried out by men who managed to keep their identities secret, preying on people who did the opposite.

For over a decade, El Chapo evaded authorities but one man was determined to catch the infamous kingpin; Former DEA agent Andrew Hogan comes out of the shadows to detail his search and capture with never-before-seen videos and photographs.

The story of journalist Amanda Lindhout who was held hostage in southern Somalia for 15 months.

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.

The murder of a local café owner leads a small-town police force to uncover a diabolical scheme fueled by scandalous temptation.

In Gilmer, Texas, firefighters find a man's charred body while battling a vehicle fire; the ensuing investigation reveals a sinister murder plot that shocks the residents of the small town.

A tumultuous household dynamic results in the deaths of four family members.

When a woman covered in blood shows up on her neighbor's doorstep, Georgia police commence a home invasion investigation that leads them to uncover more twists than they could have ever imagined.

An affluent grandmother falls victim to an elaborate murder plot fueled by passion and greed.

The investigation into a missing mechanic sends Texas authorities on a wild goose chase that ceases at a dead end, until years later, when a new tip heats this cold case to a boil.

Investigators, witnesses, reporters and loved ones who have direct connections, highlight the horrifying murder cases of Atlanta.

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.

Police initially suspect natural causes as they investigate a man's death, until they learn about an unconventional love triangle, which points the investigation in a new direction.

Police initially suspect natural causes as they investigate a man's death, until they learn about an unconventional love triangle, which points the investigation in a new direction.

A cold-case investigator helps police determine what happened to a missing woman.

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 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 the proprietor of the thriving Silent Movie Theater is viciously gunned down in his own lobby, the LAPD leans on luck, a hit TV series and its vast network of informants to uncover a conspiracy to commit murder.

When a beloved model, actress and former Los Angeles Raiderette cheerleader vanishes in broad daylight after leaving her Hermosa Beach home, a media frenzy engulfs the entire city as detectives embark on a desperate search for a sociopathic killer.

When a young paralegal is discovered bound and stabbed to death in his Lakewood Heights home, Atlanta detectives race to find his killer.

When an Atlanta businessman is shot to death in front of his son's preschool, detectives try to track down the disguised gunman.

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

Chris Smith's family receives an email stating that he is leaving California to surf the world; months later, they wonder if he really left; Keith Morrison offers new insights into the case.

To many, it seemed like a romance between a former football player and homecoming queen; but when it ends in death, the police investigate; Dennis Murphy reflects on a secret relationship that led a churchgoing couple down a dangerous path.

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.

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.

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.

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.