Investigation Discovery USA - Eastern

The idea that a child may possess the same wicked traits found in the most sadistic killers is every parent's worst nightmare; experts examine the early warning signs in psychopathic killers apprehended as teens and young adults.

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.

In mid-90s Miami, a crew of bodybuilders known as the Sun Gym Gang preys on the rich to rob them blind; as their greed grows, they turn to murder, resulting in one of the goriest crime scenes in Florida history.

Angelina Fernandes, 11 years old at the time, witnesses her mother in distress at a bloody crime scene; she claimed she acted in self-defense when she fatally stabbed her fiancé, Andy Wagner, but it would be up to a jury to decide what happened.

In mid-90s Miami, a crew of bodybuilders known as the Sun Gym Gang preys on the rich to rob them blind; as their greed grows, they turn to murder, resulting in one of the goriest crime scenes in Florida history.

Angelina Fernandes, 11 years old at the time, witnesses her mother in distress at a bloody crime scene; she claimed she acted in self-defense when she fatally stabbed her fiancé, Andy Wagner, but it would be up to a jury to decide what happened.

Revisiting an investigation into the case of an 8-year-old girl who was abducted, raped, and left for dead in 1968.

With a string of murders already behind him, Rodney Alcala appears on the TV show The Dating Game where he wins the prize: a date; ultimately Rodney is rejected by the girl, which many believe triggered yet another rampage of serial killings.

A social worker can't keep the lid on her possessive nature; a friendship is destroyed by jealous delusions; young love leads to a violent end.

Killing comes easily to those with hearts of ice.

Self-styled Instagram sex and fitness guru Ash builds a life in the glitz, glamor, and excess of Las Vegas; but the wild ride ends when he becomes entangled with a lonely Sin City resident who he comes to believe holds a dark energy inside.

As 28-year-old Sania battles through a divorce, her passionate and searingly honest TikToks attract tens of thousands of followers; but she soon discovers that members of her community want to silence her, and will stop at nothing to do it.

Anime-obsessed teenager Bianca becomes an inspiring mental health advocate online and changes lives; but on forums and social media accounts, she discovers a horrifying and violent underbelly: young men primed to threaten, harm and attack.

Teenage film reviewer Trey is building an online empire, attracting hundreds of thousands of views; but, it can't last, and soon, he finds himself dragged into a world of guns, abuse and revenge.

Stephanie is a feisty, loveable young woman from New Jersey, who is building a brand as a bespoke makeup and SFX artist online; but offline, her life becomes complicated and spirals into mystery when she vanishes into thin air on Halloween Eve.

A vibrant and inspiring group from Denver's creative community spreads messages of love and inclusion, attracting many online followers; soon they become the target of a hateful and violent member of the online manosphere with shocking consequences.

In Craig, Ala., townspeople are shocked when police discover the charred body of beloved mother and wife Lauri Waterman; people have no idea who would want to kill her, then an unlikely witness reveals a sordid story of secrets and lies.

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 York, Pa., race riots claim the lives of an African-American mother and a young, white police officer; their deaths are largely forgotten until 30 years later when their cold cases are reopened, revealing the city's dark past.

In San Francisco, Kevin Collins, 10, disappears on his way home, galvanizing the residents to find him; with few leads to go on, Kevin's case sheds light on hundreds of other children who have vanished without a trace in the United States.

A quiet rural town is rocked when two middle school girls go on a hike and are later found murdered; when police discover one of the girls may have recorded her killer with her cellphone, the race is on to find the mysterious man.

In May 2002, a couple goes missing in Ocean City, Maryland, almost as if they vanished into thin air, until a random, late-night burglary leads police to discover a tale of deception, brutality and savagery.

Four teenage girls are gunned down at an Austin yogurt shop.

In 1982, a young mother's husband discovers her murdered at home with an ax in her head; everyone thinks a psychopath is on the loose, but police never make an arrest; the authorities find that their killer is someone very close to home.

Retired drama teacher Kathy Gillcrist embarks on a journey to find her biological parents; her worst fears come to fruition when she discovers police want her father for a mass murder in Maryland state.

Days before Christmas, a driver discovers a body burning on the side of the road; eventually, authorities determine the man has gunshot wounds to the head, sparking a complex murder investigation.

In Louisiana, Megan Parra's parents find the kindergarten teacher at home with a gunshot wound to her head; authorities rule her death a suicide, but her family alleges foul play at the hands of her husband.

Retired drama teacher Kathy Gillcrist embarks on a journey to find her biological parents; her worst fears come to fruition when she discovers police want her father for a mass murder in Maryland state.

Days before Christmas, a driver discovers a body burning on the side of the road; eventually, authorities determine the man has gunshot wounds to the head, sparking a complex murder investigation.

Heidi Firkus calls 911 after her husband claims an intruder is breaking into their Minnesota home; Heidi ends up dead, and the case remains cold for 10 long years until a new investigator takes a fresh look.

In San Francisco, Kevin Collins, 10, disappears on his way home, galvanizing the residents to find him; with few leads to go on, Kevin's case sheds light on hundreds of other children who have vanished without a trace in the United States.

The police department in Anchorage, Alaska, is overwhelmed after a string of shootings leaves seven dead, including four teenagers.

A man wakes up to a parent's worst nightmare, discovering his youngest child is dead, his daughter is missing and his son is clinging to life; investigators hunt for the cold-hearted monster who attacked this family.

After a woman misses a routine bank run with her sister, panic begins to spread among her family members, then the family's worst fears are realized when a passerby finds the woman's frozen, nude body in an alley.

When a highly regarded couple vanishes right before their annual Christmas party, their family fears the worst.

A pastor finds bartender Robbie Schmidt strangled in the snow shortly before Christmas; Robbie's family is shocked when suspicion falls on his closest friend.

Kay Weden finds her mother murdered inside her home; then, investigators discover the frozen remains of Weden's boyfriend in the Blue Ridge Mountains.

High school freshman Shaun Ouillette vanishes the day after a snowstorm; an anonymous letter leads detectives into the frozen woods, where they make a discovery that will tear the small town apart.

Two brothers thrive while living with their aunt and uncle, until one brother disappears and the other dies under strange circumstances; little do the killers know, one of the boys kept a journal that ends up cracking the case.

A former paramedic ignites an affair with his ex-wife, but he's already engaged; just days after Christmas, the love triangle sparks a fit of rage.

Sgt. Joe Kenda gets an emergency call from his wife, Kathy, while facing off against a barricaded gunman; Kathy overhears gunfire, leading her to grapple with the terrifying realities of being married to a police officer.

A 13-year-old girl goes missing, sending Kenda's city into a panic; just when investigators think they've got a handle on what is going on, a cryptic letter to the district attorney's office suggests that the girl isn't the only victim.

A woman in red drops a dying man off at a firehouse and then vanishes; police soon learn the victim is a contractor with a troubled personal life, but they struggle to identify the mystery woman.

A man rushes his friend to the hospital with serious gunshot wounds, reporting they were robbed by strangers; after realizing the facts don't add up, Lt. Joe Kenda and his team go on the hunt for an eyewitness who could crack the case wide open.

The naked body of a vibrant young mother is found frozen solid in a deserted cemetery; after the case goes cold, Lt. Joe Kenda reopens the investigation and recognizes the sinister hallmark of a serial killer.

On Christmas day, a man returns to his apartment to find his 20-year-old roommate shot dead in an apparent suicide.

A woman's frozen body is found along a switchback road high in the mountains above Colorado Springs, Colo; before investigators can determine who's responsible for her death, they'll need to figure out what brought her there in the first place.

Lt. Joe Kenda finds the bullet-ridden bodies of a middle-aged couple in a musty suburban house alongside the corpses of their two beloved pets; the case gets stuck in neutral until detectives discover an essential clue hidden behind a birdcage.

Sgt. Joe Kenda gets an emergency call from his wife, Kathy, while facing off against a barricaded gunman; Kathy overhears gunfire, leading her to grapple with the terrifying realities of being married to a police officer.

A 13-year-old girl goes missing, sending Kenda's city into a panic; just when investigators think they've got a handle on what is going on, a cryptic letter to the district attorney's office suggests that the girl isn't the only victim.

A woman in red drops a dying man off at a firehouse and then vanishes; police soon learn the victim is a contractor with a troubled personal life, but they struggle to identify the mystery woman.

A man rushes his friend to the hospital with serious gunshot wounds, reporting they were robbed by strangers; after realizing the facts don't add up, Lt. Joe Kenda and his team go on the hunt for an eyewitness who could crack the case wide open.

Sgt. Joe Kenda faces his worst nightmare when he learns that a friend and fellow officer, Mark Dabling, has been killed in the line of duty; police conduct an all-out manhunt and discover the gunman is even more dangerous than they'd thought.

When 13-year-old PJ Grant is found dead from a single gunshot wound to the head, Lt. Joe Kenda assumes it's a suicide, then the physical evidence doesn't add up, opening the door to a world of possibilities, from hatred to human sacrifice.

When a young U.S. Army veteran is found stabbed to death on his living room floor, suspicion lands on a neighbor who was arrested during an altercation; when Lt. Kenda takes a closer look at the victim's love life, he realizes someone's been lying.

After a father is found shot in front of his home, Kenda uncovers a vengeful motive behind a deadly family feud; a church turns into a house of horrors as officers face a life-or-death decision when confronted by a knife-wielding psychopath.

A meeting between two businessmen leaves one shot in the face; Lt. Kenda realizes the victim could actually be the aggressor, shot struggling over his own gun.

It's New Year's Eve weekend, and in the midst of the revelry, Miguel Mendez is beaten to death outside a convenience store; Lt. Joe Kenda faces a challenging investigation, his only clues coming from a drunken witness and Miguel's strange injuries.

Joe Kenda's investigation into the brutal rape and murder of a young wife and mother goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

A man found stabbed and burned launches Lt. Joe Kenda on a manhunt; when the trail goes cold, Kenda connects the dots among a string of otherwise-unrelated heartless murders, leading him into his first and only search for a serial killer.

The unsolved rape, mutilation and murder of young G.I. Darlene Krashoc has haunted Joe Kenda in the years since he turned in his gun and badge; a crack team of cold case cops uses Kenda's groundwork to set a trap for a monster hiding in plain sight.

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

Arson investigators find a man dead in a burned-out Kentucky home; the police investigation quickly uncovers victim number two, and it's up to Detective Meroni to catch the killer before he strikes again.

After a hardworking young mother goes missing on the mean streets of Washington, D.C., Detective Jackie Middleton must get to the bottom of a cold-blooded conspiracy.

The murder of a young entrepreneur in the entranceway of his family home, sends shockwaves through his affluent seaside community; to catch the killer, Detective Dale Mason must navigate a tangled conspiracy and outwit a band of career criminals.

A scene straight out of a horror film unfolds outside of a Colorado police station, leaving one woman clinging to life and a second violently abducted; Det. Rick Archer soon uncovers a disturbing pattern that may have started a decade earlier.

In Minnesota, firemen put out a housefire and find a woman's body inside; Agent Rob Fraik learns that the victim was babysitting a friend's daughter, who is now missing; it is a race against time to track down the killer with a horrifying motive.

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

When a young woman turns up dead in south Texas, Captain Federico Calderon fears the killer has disappeared into Mexico; as more bodies turn up, investigators pick up on the trail of a serial killer, leading to a showdown in the streets of Laredo.

Arson investigators find a man dead in a burned-out Kentucky home; the police investigation quickly uncovers victim number two, and it's up to Detective Meroni to catch the killer before he strikes again.

After a hardworking young mother goes missing on the mean streets of Washington, D.C., Detective Jackie Middleton must get to the bottom of a cold-blooded conspiracy.

Led astray by addiction, George Ferribee is found executed, then Lt. Joe Kenda learns the victim had recently been kidnapped and assumes the two crimes are related, but Kenda soon discovers things are much more complicated than he had expected.

When a woman's severed head is found, Lt. Joe Kenda uses forensics and interrogation to find both her body and her killer; a young man's murder looks like a robbery gone wrong until Kenda investigates further.

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.

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.

Three hostages, two shoot-outs and one murder take place in a Bakersfield, Calif., cabin community; Benjamin Peter Ashley, an unpredictable and violent outdoorsman, leads investigators down his path of devastation, resulting in an 18-day manhunt.

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

A beloved pastor and his wife rent a cabin to get away from it all but a vicious attack leaves one deceased and the other nursing their wounds at the hospital; an investigation into the couple's past reveals a laundry list of suspects and misdeeds.

When a cosmetology student goes missing from Dubuque, Iowa, detectives question if her disappearance connects to the murder of a woman found nearby; suspicion surrounds a remote cabin on Stumpf Island.

A father's desperate search for his pregnant daughter leads him to an abandoned cabin in rural Canada; when police come in to investigate, a crucial surprise witness helps expose unspeakable crimes.

A young woman cozies up with her new boyfriend at his remote cabin but has no idea who he really is or what he's done; he reveals his violent side and she must dig deep in the hopes of surviving every scenario he throws at her.

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.

Akron police officers respond to a shooting outside a bar on a busy Friday night on Main Street; what starts out as a shooting investigation turns into a mystery of murder and the hunt for a cold-blooded killer.

After a man calls 911 to report being stabbed and a house on fire, police find Ron Whiles shot and burned in his home in Lafayette, Ind.; with one victim dead and one clinging to life, detectives question multiple suspects, which leads to one name.

Akron officers respond to a shooting outside a convenience store; they find Dereke Alexander bleeding with a faint pulse, but he doesn't survive; the investigation leads detectives to two cold-blooded killers who stalked and hunted the man.

Lansing police officers find Donovan Barfield's body riddled with bullets and his apartment ransacked; as investigators race to identify the perpetrator, they uncover a diabolical plan of murder and robbery orchestrated by a trio of reckless killers.

In separate calls, Chillicothe, Ohio, police officers find three murder victims and another clinging to life; as they investigate these crimes, they discover the victims are related; detectives question suspects, which leads to an unlikely killer.

The police in Newnan, Ga., respond to six murders in three days; as investigators try to piece together the motive behind the killings, several witnesses claim to know the culprit, but a rush to judgment could result in a killer going free.

Deputies discover a young man shot dead in a trailer park miles away from home; as they try to solve the mystery behind the murder, several key witnesses step forward to point the finger at different suspects.

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.

Akron police officers respond to a shooting outside a bar on a busy Friday night on Main Street; what starts out as a shooting investigation turns into a mystery of murder and the hunt for a cold-blooded killer.

After a man calls 911 to report being stabbed and a house on fire, police find Ron Whiles shot and burned in his home in Lafayette, Ind.; with one victim dead and one clinging to life, detectives question multiple suspects, which leads to one name.

Akron officers respond to a shooting outside a convenience store; they find Dereke Alexander bleeding with a faint pulse, but he doesn't survive; the investigation leads detectives to two cold-blooded killers who stalked and hunted the man.

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.

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.

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.

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.

Investigators respond to calls of an attack on a man in front of a house on Elm Street; they discover a quadruple homicide; detectives soon discover there is more to these murders than meets the eye, involving torture, revenge and even Satan.

During a street festival, detectives discover the body of a young man hidden inside a trash can; with few leads to go on and suspects at every turn, police aren't sure who they can trust and wh the next one is.

What started as small-town hijinks leads two teenagers to go missing on Thanksgiving; when investigators get a phone call from a man who claims he is responsible for the deaths while defending his home, they must determine truth from madness.

A hippie grandpa goes missing on Halloween and turns up in his van, dead, on Elm Street; detectives look into who might have killed this beloved family man, only to find they are on the trail of someone who has most likely killed before.

A young Ohio man vanishes without a trace, detectives embark on an investigation involving a love triangle, drugs and murder.

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.

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.

Pennsylvania State Troopers are tasked with a haunting murder investigation that takes more than a decade to solve after finding charred and decomposed human remains in the Poconos.

The disappearance of a 17-year-old girl leads detectives to an investigation spanning two decades; the case soon goes cold, but gets a renewed push after three women escape Ariel Castro's Cleveland house of horrors.

When a young couple goes missing in Eureka, Utah, detectives from neighboring counties work together to track down their killer and, with the help of a highly trained dive team, recover their bodies in an abandoned mineshaft.

The grotesque murder of a beloved citizen, Betsy Ball, shatters the quiet farm community of Vinton, Ohio.

Casey, Ill. looks to their own citizens when they find out a house fire didn't kill Scott Collins, it was murder; secrets revealed about his life aren't enough to lead to his killer, it's his German Shepherd, who holds the key to solving his case.

When Robin Baxter is found dead floating in the Ohio River, the entire town of New Albany, Ind., bands together to find who's responsible; it takes over 20 years of crossing off suspects before an elusive clue cracks the case open.

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.

Tynesha Stewart, a college freshman at Texas A&M, is reported missing during spring break; as details of her private life emerge, police uncover jealous boyfriends and turmoil at home while making a discovery that will haunt Bordersville forever.

Emmett, Idaho, a cowboy town where a person's word is everything, is shaken forever when a murderer beats a local saddle maker to death; investigators and locals band together and uncover layers of betrayal and deceit.

The grotesque murder of a beloved citizen, Betsy Ball, shatters the quiet farm community of Vinton, Ohio.

Casey, Ill. looks to their own citizens when they find out a house fire didn't kill Scott Collins, it was murder; secrets revealed about his life aren't enough to lead to his killer, it's his German Shepherd, who holds the key to solving his case.

After a cattle rancher turns up dead in his trailer home, the minuscule town of Driscoll, North Dakota, points fingers at everyone in the small population. Left with little evidence, it takes over a decade to hone in on his executioner.

In Howard City, Michigan, detectives investigate a night of horror that ends with the shooting of beloved couple Robert and Norma Bean in a gravel pit; local tips provide alarming new clues, revealing the shocking timeline of their final hours.

Despite her family's protests, 19-year-old Micah Rine marries Thomas Pate and moves away with him; when Thomas reports Micah missing after she fails to return home from a run, investigators take a close look at their life together in Tennessee.