Ahmad Shad Laster's loved ones are grief-stricken when he is shot outside a friend's home; Flagler County, Fla., detectives uncover evidence that blows the case wide open, but the hunt for justice tests family bonds and reveals shocking secrets.

In Florida, deputies respond to a domestic disturbance, but an uncooperative suspect leads to a dangerous stand-off; in Tennessee, an unlicensed driver steals a police cruiser, triggering a high-speed chase.

Ida Mae Ford gets shot dead in the middle of a dark street near her home in Macon, Ga.; detectives race to track down the beloved grandmother's elusive killer, and a shocking crime spree ultimately leads investigators to an unexpected suspect.

Ahmad Shad Laster's loved ones are grief-stricken when he is shot outside a friend's home; Flagler County, Fla., detectives uncover evidence that blows the case wide open, but the hunt for justice tests family bonds and reveals shocking secrets.

In Wisconsin, a terrified woman wakes up in her car and finds it's been stolen by a thief, sparking a high-speed police pursuit; a home invasion in Utah turns into a fire rescue, when a man sets the house alight with the residents still inside.

Considered a runaway at first, teenager Skylar Neese's remains are found six months after a surveillance camera captures her climbing out of her window at night.

In Coral Springs, Fla., Surya Toha vanishes without a trace after dropping her sons off at school; video surveillance footage reveals exactly what happened to her.

Michele Reiter bounces back after a failed marriage and a troubled romance, then she goes missing after agreeing to go on a date with a new friend she has met on Facebook.

Seventeen-year-old adoptee Chelsea Schobert feels out of place at home, then she finds acceptance with Shawn whom she meets online, but as their relationship develops, the whole family is drawn into a devastating series of events.

When a young Army veteran returns from war, his family is relieved to have him out of harm's way finally. But danger lurks closer to home when a brief encounter on a dating app leads to a devastating tragedy.

A hopeful 12-year-old singer looks for fame online using her webcam, gathering many admirers; she soon falls for a boy who flatters her, but her dream turns into a nightmare after a shocking photo is shared online.

After a night out in a downtown Denver nightclub, Kenia Monge wanders the streets without a purse or phone; her journey leads to encounters with several men --some good, and one who drives a creepy white van.

After Kacie Woody discovers Internet chat rooms, the popular teen has her pick of high school hunks hoping to connect; the teen is exchanging IMs with her latest love interest, when a silver van creaks to a stop outside her house.

When Ray and Marie Thornton go out for a drive in the country on Easter Sunday, they are almost chased off the road by a tailgating van and when they see the driver changing license plates and dumping a bloody sheet, they call police.

After Kate Johnson is murdered in her dormitory room, detectives ask why this innocent young woman was targeted; detectives collect 400 DNA samples, establish a secret task force and track down Johnson's killer to get their chilling answer.

An unsolved murder is linked to a brutal assault; when the killer strikes, multiple homicide detectives team up to bring him to justice.

After a home invasion turns deadly with the near decapitation of a man, police look at the victims' friends and girlfriend.

The discovery of a burned body sends police on the hunt for camera footage that may show the crime.

In Texas, on Christmas Eve 2010, a woman gets a mysterious phone call at work and speeds home to find her 12-year-old son gone without a trace; investigators look at those closest to the boy, but only surveillance footage can lead them to the truth.

The police lack leads after single mom Laura Ackerson leaves for work one morning and never returns, so they turn to surveillance cameras to try to locate her and unearth sinister footage.

In 2010, three men are murdered in a convenience store in Minneapolis's Somali community; the store's CCTV system uncovers evidence of a robbery gone wrong, and footage from cameras around the city could offer clues to the killer's identity.

In Fernandina Beach, Fla., cosmetologist Joleen Cummings goes missing after an appointment, her last at Tangles Salon; CCTV footage shows her car in an isolated parking lot in the middle of the night; a closer look reveals an unlikely suspect.

In Cleveland, Texas, a man guns down Conbino Crasto during a gas station robbery; surveillance video sends police on a hunt for three masked suspects.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

In Cleveland, Texas, a man guns down Conbino Crasto during a gas station robbery; surveillance video sends police on a hunt for three masked suspects.

Las Vegas Detectives find themselves on the hunt of their careers as they try to track down those responsible for the horrific murder of a young woman after her body turns up in a concrete and wooden box in the middle of the desert.

When a husband discovers his wife and two children brutally murdered, police begin to suspect the killer is someone they've arrested before; one year prior, a disturbed teenager terrorized a family for months by hiding in a most unlikely place.

In Fernandina Beach, Fla., cosmetologist Joleen Cummings goes missing after an appointment, her last at Tangles Salon; CCTV footage shows her car in an isolated parking lot in the middle of the night; a closer look reveals an unlikely suspect.

A tip from a missing persons network helps identify the body of a John Doe murder victim, leading investigators to unravel a dark tale of betrayal.

In the suburbs of Atlanta, Ga., a pregnant woman and her fiancé are kidnapped on the night before their baby shower and the fiancé's family receives ransom calls that same night.

Over the span of decades, three women meet their deaths or go missing under mysterious circumstances, forcing authorities to examine the one thing they had in common -- they all fell in love with the same man.

One summer night in 2007, the Petit family is woken up by two strangers in their quiet Connecticut home; suddenly, these four family members find themselves being held hostage and in a fight for their lives.

In the summer of 2000, bags full of body parts start appearing all over the San Francisco Bay Area; investigators follow the trail of grisly clues to a secret cult carrying out a sinister scheme.

A brutal 1970 home invasion claims the lives of Army surgeon Jeffrey MacDonald's wife and daughters, leaving him the lone survivor; authorities doubt his story of murderous hippies and believe MacDonald committed the crime himself.

Kevin Thorpe and Laura Craig come face to face with evil on the back roads of Northern California.

Recent high-school graduate Stephanie Neiman gives her friend a ride, which ends with Neiman fighting for her life.

When Lisa Holden gets married and moves to an isolated home in rural Texas, it triggers a long, inexplicable estrangement from her family; but at the root of this painful divide lies something far more evil than her family could ever imagine.

Janet Lynn Mickey dreams of starting her own family and marries college football star Darrell Tyburski; plans change after the young couple begins having children, leading them down a very dark path.

In Garden Grove, Calif., 19-year-old Jose Najera sneaks out of his parents' house to attend a late-night party, then he returns home to find both parents dead on their bedroom floor.

Three men die over a span of a dozen years, with no suspicion of wrongdoing and no files charged; but when a deadly car explosion rips through downtown Pensacola, Fla., a new investigation begins; all suspicion points toward just one person.

Craig Lester Thrift brags about getting away with murder, but everyone thinks he is kidding; Robyn Barry knows Thrift better than anyone, and she begins to suspect he isn't joking; someone needs to believe her before Thrift makes her his next victim.

Lori and Brook have one terrible commonality: Gary Simmons; Gary tortures Lori during their 6-year marriage, and later he imprisons and violates Brook; the two women meet for the first time and share their stories.

Victoria and Christine Lisowski live in fear of their mother, Sungnam Kwon-Lisowski; they never imagine that this Christmas, they'll feel lucky to survive the holiday and their mother's crazed vengeance.

Betty hopes her sister's son, Chance, is a beacon of hope in their troubled lives, but Betty sees his dark side early on; he lacks empathy and becomes violent until he explodes in a fit of rage, harming the one person who cared for him most.

A string of horrifying fires plagues California in the Eighties and Nineties, one of them fatally trapping four people inside.

In a race against time, investigators hunt for an arsonist setting devastating fires across California; to their complete shock, the man responsible turns out to be none other than renowned fire investigator Captain John Orr.

The murders of two young women of Phoenix, Arizona, killed 10 months apart in 1992 and 1993, go unsolved for more than two decades; thanks to time and new technology, police find a person of interest.

A string of horrifying fires plagues California in the Eighties and Nineties, one of them fatally trapping four people inside.

In a race against time, investigators hunt for an arsonist setting devastating fires across California; to their complete shock, the man responsible turns out to be none other than renowned fire investigator Captain John Orr.

The murders of two young women of Phoenix, Arizona, killed 10 months apart in 1992 and 1993, go unsolved for more than two decades; thanks to time and new technology, police find a person of interest.

Betty hopes her sister's son, Chance, is a beacon of hope in their troubled lives, but Betty sees his dark side early on; he lacks empathy and becomes violent until he explodes in a fit of rage, harming the one person who cared for him most.

Sean Farmer travels to a remote campsite in Virginia for a fishing trip with his friend Scott Johnston, but a mysterious stranger appears, unveiling the area's dark past.

A young Native American woman is found near the side of a road in rural Montana; she is badly beaten and barely hanging on to life; her family's search for justice leads them down an unexpected road.

When the body of a single mother turns up in a snowbank outside Anchorage, Alaska, the evidence points to the victim's fugitive fiancé; the shocking murder of a second native Alaskan sparks investigators' fears that a serial killer is on the loose.

For Connecticut police, unlocking the mystery of Anna Lisa Raymundo's murder hinges on identifying a mysterious 911 caller, but a veteran female detective's homicidal sex-play investigation breaks open the case.

An enraged killer strikes down 26-year-old Alexandra Ducsay, an aspiring entertainer with a big heart and a blossoming career; slain inside her family's Connecticut home, her attacker uses her own dance trophy to bludgeon her to death.

Playboy Playmate of the Year Dorothy catapulted to fame; Paul Snider discovered the teen in Vancouver and married her.

Playboy Playmate of the Year Dorothy catapulted to fame.

For 15 years, Heather Robinson thought she knew her life story; but the arrest of a serial killer 500 miles from home would reveal a dark family secret and turn her life upside down.

For 15 years, Heather Robinson thought she knew her life story; but the arrest of a serial killer 500 miles from home reveals a dark family secret and turns her life upside down.

With her good looks and sunny demeanor, doctor's assistant and part-time model Christine Kent attracts her fair share of admirers; after one encounter ignites jealousy and obsession, Christine is blindsided by the devastating consequences.

Single mother Barbara Nunn relocates to Florida, but she struggles to find her way; after she lands a job at a local diner, it appears her troubles are finally behind her; one night, a surprise confrontation with customers ends in murder.

For 17-year-old Sarah Wisnosky, college is all about new experiences, so when she catches the eye of a flirty frat member, she's happy to play along, then the college freshman discovers he's hiding a dark secret.

An unknown assailant strangles overnight desk clerk Mary Klatt during her shift; the town of Blue Earth, Minn., struggles with the harsh reality that someone would want to harm Mary.

After locals smell charred meat, police find burned remains in an abandoned mining pit in the town of Hibbing, Minn.; before they can investigate who committed the crime, they must first identity the body.

Baseball-loving wife and mother Diane Fortenberr is found unconscious on the floor of her burglarized home; hours later, Diane succumbs to her injuries at the hospital, and the entire resort town of Osakis, Minn., aids law enforcement.

After teenager Jessica Dishon is murdered in Shepherdsville, Kentucky, police must sort through her past relationships, jealous friends, and an old family feud to find the killer.

On Thanksgiving weekend, a gunshot kills a former high school football star turned referee on his doorstep in broad daylight; in the world of Texas football, police focus on the possibility that a disgruntled parent or fan followed him home.

Drum major Robert Champion suddenly dies in the back of the Florida A&M marching band bus, mystifying authorities; an autopsy points to foul play, leading to an investigation that exposes a secret inside one of America's premiere marching bands.

The Ybarra family wake to find their son Jacob and his best friend, Sabion, shot to death; as star football players for their high schools, the murders shatter two small Texas towns; the tragedy worsens when the community learns who the killer is.

When police find a former cheerleader burned to ashes in her car, they launch an investigation filled with rumors of town corruption and cover-ups; decades later, loved ones are still searching for an answer.

Drum major Robert Champion suddenly dies in the back of the Florida A&M marching band bus, mystifying authorities; an autopsy points to foul play, leading to an investigation that exposes a secret inside one of America's premiere marching bands.

The Ybarra family wake to find their son Jacob and his best friend, Sabion, shot to death; as star football players for their high schools, the murders shatter two small Texas towns; the tragedy worsens when the community learns who the killer is.

When police find a former cheerleader burned to ashes in her car, they launch an investigation filled with rumors of town corruption and cover-ups; decades later, loved ones are still searching for an answer.

On Thanksgiving weekend, a gunshot kills a former high school football star turned referee on his doorstep in broad daylight; in the world of Texas football, police focus on the possibility that a disgruntled parent or fan followed him home.

When a uniformed police officer is found murdered in the middle of a deserted road, it's up to Detective Earl Peters to figure out who downed his colleague in cold blood.

The investigation into the deaths of a Toronto couple leads a detective to uncover a pattern of escalating crimes that suggest a serial killer is operating in Cottage Country.

Stephanie Shea Graham, 20, is found murdered on a desolate road; detectives gather clues and question suspects, and when the truth is finally revealed, the identity of her killer will prove to be more shocking than ever imagined.

Brittney Cosby and Crystal Jackson are an ambitious couple living in Houston, then their lifeless bodies are found near a dumpster; authorities comb through the evidence until the identity of their killer is revealed.

Rob and Brenda Andrew, a devout couple living in the Bible Belt of Oklahoma City, find their world shattered when both of them are shot during a violent home invasion; the mastermind proves to be closer than anyone imagined.

In Harlem, N.Y., a couple discovers it's not better to have the upstairs apartment.

The mountain road between them fails to keep two long-time neighbors from tormenting each other; seemingly small events bring their decadeslong hostility to a bloody boil, and property lines become battle lines in a fight to the death.

A friendly retired couple delights a family with young children when they move in next door. Then the new neighbors' dog attacks the children's mother, setting off a vicious conflict that ends in two shocking murders.

After years of a married couple ruling their street, a new neighbor who doesn't abide by them moves in; years of tension fester between the two parties until one is pushed over the edge, resulting in a shocking double-execution.

On a June morning, a cleaning lady finds property manager Melinda Schaefer stabbed to death in her ransacked office.

Alice Hufnagle is raped and murdered on Nov. 22, 2002; after following numerous leads and dead ends, police find the vital clues that lead them to Jeffery Vample, Alice's co-worker at a local pharmacy.

Two school secretaries disappear in broad daylight, while on their lunch break; one of the school secretaries is found dead and the other is still missing; police suspect that the perpetrator of the crime has ties to the school.

When some couples unite, they spark a terrible urge for destruction.

Kristin Stephens uses her husband's money to fuel her gambling addiction; Brittney Dwyer convinces her roommate to drive to her grandfather's home to search for money; a couple targets an employee to squelch their financial problems.

Paige Conley turns to drugs and alcohol following her parents' divorce and takes her anger out on her mother; Becky Reid is volatile and violent behind closed doors; Katie Coursey unleashes drug-fueled rage on the one person trying to protect her.

Jackie Spaulding takes lethal measures to get her money back; Lucille Miller realizes she's the sole beneficiary of her husband's life insurance policy; Julie Dixon makes sure her partner will never find out about their company's bankruptcy.

In the Atlanta suburb of Buford, George and Tia Young raise their three sons; when his childhood friend Tim Lee moves to town, George offers to let him stay with the family; a sinister seduction occurs, leading to a cold-blooded murder.

When Michael's body is found on a local golf course, a dark truth emerges.

A Florida doctor and his model wife seem to have a dream life, but the secrets he hides soon lead to a despicable crime.

Kosta and Lisa Fotopoulos are a Daytona Beach power couple in 1989; Kosta owns a bar and hires sultry Deidre Hunt as a waitress; soon, a torrid affair, a deadly home invasion and a videotaped murder all result from a tailspin of greed and seduction.

When Michael's body is found on a local golf course, a dark truth emerges.

A Florida doctor and his model wife seem to have a dream life, but the secrets he hides soon lead to a despicable crime.

Kosta and Lisa Fotopoulos are a Daytona Beach power couple in 1989; Kosta owns a bar and hires sultry Deidre Hunt as a waitress; soon, a torrid affair, a deadly home invasion and a videotaped murder all result from a tailspin of greed and seduction.

In the Atlanta suburb of Buford, George and Tia Young raise their three sons; when his childhood friend Tim Lee moves to town, George offers to let him stay with the family; a sinister seduction occurs, leading to a cold-blooded murder.

Living with her mother, sister and grandmother, Catherine dumps her drug-using boyfriend, Shane, who breaks into her home and takes everyone hostage; Catherine hides behind a shower curtain for five hours not knowing how the deadlock will end.

Seventeen-year old Katie lives with her doting parents, who are shocked to find out she's being stalked by an ex-boyfriend they didn't know existed; one night, Katie's parents reluctantly agree to leave her home alone with appalling consequences.

The abduction of a young girl sends a relentless detective on a quest to bring justice to her heartbroken family.

The investigation of a brutal murder forces police to challenge both confessions and lies.

A mysterious late-night call requesting last rites for a loved one leads to the shocking murder of a beloved priest.

In 2001, actor Robert Blake finds his new wife, Bonny Lee Bakely, shot in the head in the couple's car; the largest homicide investigation in LAPD history uncovers a story of blind ambition and betrayal.

After a single mother fails to show up for work, police find her brutally stabbed and her daughter missing from their home in an affluent gated community; everyone fears she's in danger, but what they uncover is darker than they could have imagined.

A 19-year-old coed leaves her apartment and never returns; when her body is found in a desert river basin, police and internet sleuths wonder if she was a victim of an alleged killer known as the Zombie Hunter.

A teen mysteriously vanishes after a strange night with friends.

During the day, Lorenzo Gilyard is a soft-spoken and well-liked man, but at night, he's a monster, preying on women; his best friend, a trained social worker, misses the signs; going inside the prison to get answers from the notorious serial killer.

Elisabeth and Frank reconnect after years apart, and Elisabeth's mother, Cheri, watches as their toxic relationship blows up and leads to a devastating fire; when the smoke clears, one lies dead, and the other sits behind bars.

Amy grows worried about her brother Joel's violent and erratic behavior, and his girlfriend, Melanie, suffers abuse at his hands; when a man is shot dead, Joel is engaging police in a lethal standoff.

As a child, Daniel Rolle idolizes his father, Donald, until Donald's rage makes everyone suffer; when that eventually leads to murder, Daniel must decide if he still loves his father enough to beg a jury not to kill him.

Kelly Pletcher elopes with Wayne Adam Ford, who begins to descend into an obsessive world of twisted sexual fetishes and demeaning desires, and Kelly's short-lived fairy tale becomes a nightmare from which she is desperate to escape.

When Sarita Anderson begins feeling ill, she thinks it's just the flu at first; she never suspects that the man pretending to love and nurse her back to health is actually the monster responsible.

Christina Thomas believes her brother, John, the first time he nearly kills a woman; she forgives him when he murders another, but when it happens again, she wonders why she trusted him and how she missed the signs he was really a devil in disguise.

Tonja Balden doesn't know the charming man she meets at the bar, Andrew Luster, hides a twisted secret; when they date, she doesn't know he's recording his crimes until a major news story unveils his long, dark history.

Debra sees darkness in her young brother's eyes but hopes he'll change. When he attacks their stepmother and grandmother, she accepts his denial. However, when her brother becomes a notorious serial killer, she realizes her brother is a monster.

When Heidi's alcoholic husband, Chris, goes missing, she searches far and wide to find him, getting help from Chris' wider family; after a missing person's report is filed, police uncover a dark secret hidden in the basement of the marital home.

Intruders shoot wealthy jeweler Ted Shaughnessy at his home in Austin, Texas; investigators wonder if it was a random attack or a robbery gone wrong; as they dig deeper, police suspect it wasn't a stranger killing at all.

Debra sees darkness in her young brother's eyes but hopes he'll change. When he attacks their stepmother and grandmother, she accepts his denial. However, when her brother becomes a notorious serial killer, she realizes her brother is a monster.

When Heidi's alcoholic husband, Chris, goes missing, she searches far and wide to find him, getting help from Chris' wider family; after a missing person's report is filed, police uncover a dark secret hidden in the basement of the marital home.

Intruders shoot wealthy jeweler Ted Shaughnessy at his home in Austin, Texas; investigators wonder if it was a random attack or a robbery gone wrong; as they dig deeper, police suspect it wasn't a stranger killing at all.

Tonja Balden doesn't know the charming man she meets at the bar, Andrew Luster, hides a twisted secret; when they date, she doesn't know he's recording his crimes until a major news story unveils his long, dark history.

Police uncover a trail of terrifying clues while investigating a couple's disappearance; they come to suspect that the couple has fallen victim to a carefully laid trap in the classified pages of the newspaper.

After a young woman is viciously murdered, police launch a two-part investigation; one to find her killer and a second to identify his victim, Precious Jane Doe.

One of the most prolific rapists and serial killers in Alaska's history; for more than a decade, The Butcher Baker kidnapped young women and brought them into the wilderness and hunted them like prey.

For years, The Butcher Baker serial killer was hiding in plain sight; he presented himself as a soft-spoken family man; one woman's story leads police to a shocking discovery inside Robert Hansen's home.

In November 1974, the DeFeo family were found murdered inside their beautiful seaside home; the mother, father and four of their children were shot in the back as they lay sleeping in their beds.

Para psychologists and psychics descend on the house to investigate who murdered the DeFeo family and why.

When Peggy Klinke returns to school to pursue her dream of becoming a doctor, she catches the eye of fellow student Patrick Kennedy; their relationship leads them down a terrifying path of jealousy, obsession and murder.

Coworkers become concerned when a trusted legal assistant fails to show up for work; as the sordid details of the employee's abduction come to light, it appears someone at the office may know more than they let on.

Twenty-two-year-old Adriane Fields can't shake the feeling she's going to fall victim to a serial killer who is on the loose in Arlington, Texas; crippled by fear, Fields moves across town, only to come face-to-face with her worst nightmare.

Single mom Karen Petersen is enjoying a night out when a handsome cowboy charms his way into her home; he attacks her, leaving her for dead, and as more victims emerge, cops fear a serial killer is on the loose.

When someone guns down mine worker Matthew Misener on a remote Arizona highway, it first appears to be a road rage attack; his family faces the shocking possibility that they unwittingly played a part in the feud that left him dead.

Oklahoma newlywed Rex Harper is shot dead at the wheel of his truck on Main Street in what investigators believe is a professional hit; with no witnesses or clues, detectives must crack the cowboy code of silence to reveal the key to his killing.

Wealthy and glamorous 78-year-old widow Jean Schwarzkopf is determined not to give up on life and is soon a fixture on the Florida social scene; Jean's new friends are not all they seem and her family is drawn into a dark world of crime and violence.

Ashley Pittman thinks she hit the lottery marrying Jeffrey Scott, and he gives her a cushier life than the one she left behind in small-town Louisiana; however, behind closed doors, a secret soon turns deadly.

Air Force veteran Roger Harris and his wife Donna, a nurse, built their dream home in Florida, but just after the birth of their second son, a vile secret threatens their sweet, simple life; someone's hatching a plot that no one ever saw coming.

Michelle Rogers and Matt Terry are together and share a son, Matt, but he has a dark side that comes out when he drinks; his rage explodes, leaving Michelle fighting for her life; Matt serves prison time, but tragedy strikes again when he gets out.

A man crashes into the back of a woman's vehicle; officers respond to the scene only to find her car abandoned; witnesses point to the other driver, and detectives are horrified to discover a sadistic psychopath who admits to murder.

After his conviction for the brutal slaying of his wife, a Florida inmate lays claim to another unsolved murder 17 years prior, revealing that he's a manipulative psychopath with a history of violence and an unquenchable thirst for revenge.

A house on Elm Street goes up in flames; inside, firefighters discover two bodies impaled with swords; police quickly identify the male victim, but the female victim remains a mystery.

Tragedy strikes a mountain community when a beloved resident, 71-year-old Jack Irwin, disappears without a trace; strange crimes plague the old cabin where Jack used to live, and a compelling wiretap operation.

Two neighbors who are down on their luck bond over their struggle; when one buries the other in debt with a hustle gone wrong, things fall apart, but their co-dependence keeps them entwined until an act of revenge.

A house on Elm Street goes up in flames; inside, firefighters discover two bodies impaled with swords; police quickly identify the male victim, but the female victim remains a mystery.

Tragedy strikes a mountain community when a beloved resident, 71-year-old Jack Irwin, disappears without a trace; strange crimes plague the old cabin where Jack used to live, and a compelling wiretap operation.

Two neighbors who are down on their luck bond over their struggle; when one buries the other in debt with a hustle gone wrong, things fall apart, but their co-dependence keeps them entwined until an act of revenge.

A man crashes into the back of a woman's vehicle; officers respond to the scene only to find her car abandoned; witnesses point to the other driver, and detectives are horrified to discover a sadistic psychopath who admits to murder.

After his conviction for the brutal slaying of his wife, a Florida inmate lays claim to another unsolved murder 17 years prior, revealing that he's a manipulative psychopath with a history of violence and an unquenchable thirst for revenge.

Home movies reveal the fabulous lifestyle of Lanny and Donna Horwitz who are raising their son, Radley, in their Florida mansion; when their lives are upended by a ghastly shooting, everyone in this eccentric family becomes a suspect.

A father-of-two disappears right before starting a new job; his wife has no idea where he went, while his friends hint that he led a secret, sordid life; the man's disappearance remains a mystery for years until a tip reveals the jaw-dropping truth.

In Monroe, Ohio, an affluent retirement community is baffled after Barbara Howe simply vanishes one night; the police soon find Barbara's body in the trunk of her car, and her throat has been slit.

Bride-to-be Patricia Richmond is found bound and murdered at her future in-laws' home in the resort town of Steamboat Springs, Colo.

Jill Walker finds her daughter, Emma, cold to the touch in her own bed; quickly ruling out suicide, investigators search for a suspicious man in black caught on a neighbor's home surveillance camera.

A farmhand In Rapelje, Mont., finds her co-worker murdered; as authorities look for the murderer, all of the employees on the pig farm become suspects.

College student Jessica O'Grady vanishes one night, making locals wonder if she was kidnapped, especially since another woman disappeared a week earlier.

Forty-year-old Rachael Anderson disappears without a trace after calling a friend about a home improvement project she'll never complete.

Alexis Murphy, who is a rising social media star and high school athlete, disappears along the infamous Route 29 in August of 2013; a massive search by local and federal authorities yields zero results, until a security video reveals a chilling clue.

State troopers arrive at the scene of a woman shot to death in her bed; they rule it suicide, but a tenacious detective reopens the case decades later; modern forensics, a double life and new witnesses turn the facts of the case on their heads.

Police find a woman's corpse in flames outside of Atlanta; they use surveillance footage to learn about her last moments, including witnessing the victim getting into the car that would take her to her death and ultimately lead them to the killer.

A city's worst fear comes to fruition when the body of a University of Toledo sorority sister turns up riddled with bullets on campus; the ensuing investigation's findings shock the community and test the public's faith in law enforcement.

Apache County Sheriff's Office begins a double homicide investigation after the gruesome discovery of an elderly couple's remains in Sanders, Ariz.

Forty-year-old Jamie Baker leaves her family behind when someone shoots and kills her with a bullet through the back; the mystery deepens when police dig into her last moments and uncover what transpired the night of her death.

Police find Orlando Euell's body left for dead on the side of the road in Milwaukee; police examine extensive surveillance footage to learn about Orlando's last moments, including witnessing him get into the car that would take him to his death.

Noah Kinney is shot dead in a car that crashed outside a home in Akron, Ohio; detectives attempt to determine who did it and race to find an armed killer on the loose; investigators are shocked to discover video evidence that cracks the case open.

In New Mexico, a female officer pulls over a truck, but when she approaches, shots ring out; in Ohio, officers surround a house where men take a victim at gunpoint; the suspects escape with a 2nd hostage, and a full-scale manhunt ensues.

In New Mexico, an inmate faking a heart attack jumps a prison guard; the suspect escapes in the van, taking two fellow inmates with him and sparking a manhunt; in Nebraska, a family enjoying their July 4th faces a firework attack by a random family.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

A violent car snatcher, a trusted adult with an unpredictable game plan, and a guest gone wild at the happy place on Earth all terrorize strangers and family alike; these frightening experiences happen when their witnesses least expect it.

A dismembered torso turns up in a Florida forest, and the discovery launches detectives across the U.S. to search for answers; with only a tattoo found on the victim, investigators must solve this horrific mystery before the killer is gone for good.

In New Mexico, an inmate faking a heart attack jumps a prison guard; the suspect escapes in the van, taking two fellow inmates with him and sparking a manhunt; in Nebraska, a family enjoying their July 4th faces a firework attack by a random family.

Good Samaritans assist road rage victims; a group of women gets into a big brawl in a Florida intersection; a motorcycle causes an accident; a man plows through a parade route.

A violent car snatcher, a trusted adult with an unpredictable game plan, and a guest gone wild at the happy place on Earth all terrorize strangers and family alike; these frightening experiences happen when their witnesses least expect it.

A dismembered torso turns up in a Florida forest, and the discovery launches detectives across the U.S. to search for answers; with only a tattoo found on the victim, investigators must solve this horrific mystery before the killer is gone for good.

In New Mexico, a female officer pulls over a truck, but when she approaches, shots ring out; in Ohio, officers surround a house where men take a victim at gunpoint; the suspects escape with a 2nd hostage, and a full-scale manhunt ensues.

The brutal murder of a legal secretary in her Georgia home leaves police with few clues as to who would want her dead; a co-worker's alibi falls apart, revealing a callous conspiracy of greed that shocks this genteel, Southern town.

Theresa Wesolowski, 22, is murdered on May 29, 1999; police are baffled for nearly 10 years before finally getting a break when a new DNA technique identifies Wesolowski's coworker, Mark Libecki, as her killer.

A disabled fireman polices his neighbors and punishes violations ranging from loud music to off-leash dogs; things boil over at a birthday party where shots are fired and blood runs in the street.

A family loves everything about their new home except the mockingbirds that perch and squawk in the backyard lemon tree; the family seeks to scare them off, igniting a feud with their neighbors that spins out of control until someone lies dead.

A firefighter moves into a family-friendly neighborhood with his wife and child, but the rambunctious teenagers living next door drive him over the edge.

On the frontier, a neighbor's dog frightens the other's daughter and grandson, resulting with an all-out war that will leave one of them shot dead and the other in a white-knuckle standoff with police.

Cody MacPherson moves to New Jersey seeking work and disappears after a night of partying with a new group of friends.

Beloved basketball coach and teacher Jimmy McClain is found brutally murdered in his own home; with no forced entry, police fear Jimmy knew his killer or let the killer inside his house.

In one of the most exclusive neighborhoods in Washington, D.C., police discover a gruesome murder scene amongst the charred ruins of a mansion.

When a shooting spree turns deadly in Natchez, Miss., detectives turn to city-run cameras to identify suspects; in Utah, a missing person's case becomes a murder investigation, and police rely on a Real Time Crime Center to find the killer.

In New York City, surveillance cameras help track down a trio of bandits after a daring heist of a Pay-o-Matic in Queens; in Colorado, a makeshift Real Time Crime Center helps solve the murder of 27-year-old Andrew Jenicek outside a restaurant.

When a killer guns down a rapper outside a New Orleans Waffle House, police use state-of-the-art technology to find the culprit; a string of robberies in Jonesboro, Ark., baffles police until they use video to link the crimes.

In 2013, Kira Steger goes missing after a date night with her husband at the Mall of America; after a shocking discovery in a parking lot, investigators fear foul play; they turn to mall security footage in the hopes of solving this mysterious case.

In 2014, graduate student Tequila Suter is stabbed to death in her suburban Buffalo home; investigators' only hope of solving the case is to piece together a trail of CCTV across town and follow in the footsteps of a killer.

In 2009 in Tracy, Calif., a little girl vanishes after playing at a friend's house, leaving her family desperate for answers; with no leads and few clues, investigators must rely on surveillance footage to piece together the horrifying truth.

In 2018, a killer shoots 33-year-old restaurant worker Joshua Webb outside an apartment block in Beckley, W.V.; to solve the murder and identify the culprit, police must unravel a web of lies by following a trail of security footage.

When 30-year-old, mother-of-two, Mandi Gordon disappears, investigators turn to CCTV for clues to help them find her; they uncover a complex web of lies and a betrayal that lead to a botched cover-up, and a grisly discovery on a remote ranch.

Real crimes are solved using footage from surveillance cameras.

Police find a murder victim inside a Civil War crypt in a historic cemetery in Southwest Philadelphia; detectives from two counties navigate the evils of a notorious motorcycle club to try and solve the case.

A father's desperate search for his daughter leads him to an abandoned cabin in rural Canada; a surprise witness helps expose unspeakable crimes.

Real crimes are solved using footage from surveillance cameras.

Police find a murder victim inside a Civil War crypt in a historic cemetery in Southwest Philadelphia; detectives from two counties navigate the evils of a notorious motorcycle club to try and solve the case.

A father's desperate search for his daughter leads him to an abandoned cabin in rural Canada; a surprise witness helps expose unspeakable crimes.

When 30-year-old, mother-of-two, Mandi Gordon disappears, investigators turn to CCTV for clues to help them find her; they uncover a complex web of lies and a betrayal that lead to a botched cover-up, and a grisly discovery on a remote ranch.

In Sheffield, Ala., 36-year-old Kimra Riley heads to a bar looking for fun but finds something far more sinister; later,. her body is found on the banks of the Tennessee River.

After the body of wealthy Richard Hodges is found along the Missouri River, police find his mother has been killed inside their home; as detectives get to work, they wonder if a secret in Hodges' life might have been behind the murders.

Maurice Goins, a friendly neighbor who provides meals to other tenants in his apartment complex, is found murdered in his bedroom. The case goes cold, until Lakewood, Ohio police suddenly receive a tip and the investigation is thrown into overdrive.

The streets of Kalamazoo, Mich., are full of rumors about 69-year-old William Gray; faced with a missing persons case, investigators are met with a wall of silence.

Steven Galvin is dead; now, bodycam video captures the detectives' hunt for his killer; as the case unravels, a surprise witness turns the case on its head; and a play by play of the crime reveals new evidence that brings the killer to justice.

When workers find a body on an abandoned property in western Ohio, it opens up a homicide investigation that sends shockwaves through the Amish community.

The discovery of the bullet-riddled bodies of Skyla Whitaker and Taylor Placker inspires panic among the community members of Weleetka, Okla.

When a popular cheerleader goes missing in rural Arkansas, the small town is sent into a panic; after her sports car is found abandoned, investigators are sure something is not right, but no one expects the horror that ensues.

In Poteau, Okla., the proprietor of a saloon goes missing, leaving behind a splash of blood and many unanswered questions.

In August 1992, millionaire Tennessee landowner Allen Roberts arrives home to discover his wife is missing; he tells police he received a ransom call for Doe's safe return; slowly, the town turns on Allen, until police take note of one odd neighbor.

Joel Larson is shot to death in a safe haven community for gay people in 1990s Minneapolis; two more shootings terrorize people in the community as they realize a serial killer lives among them.

Debora Gail Moody vanishes into thin air from her home in Ludowici Ga.; a decade passes in her case with no answers; her family persists by posting billboards all around town; 11 years later, a confession reveals the chilling details.

A farmhand goes missing from a sprawling cattle ranch, but the case takes a sinister turn when his body shows up miles down the Coweeman river.

A fisherman spots a dismembered corpse floating in Thunder Bay; the case stalls until a young witness delivers a harrowing testimony.

A home health care aide's body floats in a rural Connecticut creek, and detective Garritt Kelly joins the investigation to bring justice to a community gripped by fear; Kelly will need to employ burgeoning forensic technology to secure a conviction.

A mother raises the alarm when her daughter goes missing from the Colorado house she had recently moved into; while Det. Ben Endreson is investigating, an unusual suspect comes forward to confess her involvement, but her story doesn't quite add up.

In the small town of Twinsburg, Ohio, Charlene Puffenbarger's 3-year-old son is the only witness to her brutal murder; as investigators continue to follow every tip that comes in, an unexpected source leads them to the killer.

After a 40-year manhunt, investigators finally unmask the man suspected of being California's most prolific serial killer.

Law enforcement personnel identify the Golden State Killer as being Joseph DeAngelo who was hiding in plain sight.

Brandi Mathews goes missing, and only her mother seems interested in searching for her; when her remains turn up over two years later, police dig into Brandi's work and romantic partners to find her killer.

After a 40-year manhunt, investigators finally unmask the man suspected of being California's most prolific serial killer.

Law enforcement personnel identify the Golden State Killer as being Joseph DeAngelo who was hiding in plain sight.

Brandi Mathews goes missing, and only her mother seems interested in searching for her; when her remains turn up over two years later, police dig into Brandi's work and romantic partners to find her killer.

In the small town of Twinsburg, Ohio, Charlene Puffenbarger's 3-year-old son is the only witness to her brutal murder; as investigators continue to follow every tip that comes in, an unexpected source leads them to the killer.

When police discover Nicole Waller's SUV abandoned on a desolate Montana highway, the 31-year-old mother of three had vanished into thin air. Investigators follow a trail of lies and greed, uncovering a mystery it seems they would never solve.

Christi Flynn meets three shady strangers at a bar and finds herself in the fight of her life as they kidnap her and take her on a tortuous journey throughout the Arkansas forests.