When one best friend falls for the other man's wife, all bets are off.

After finding each other online, two young girls form a friendship that becomes something deeper.

Two best friends turn on each other when a third girl transforms their solid duo into an unstable trio.

Two Pennsylvania girls grow up as best friends, but things get rocky when they become lovers and a third girl befriends them.

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A woman is brutally assaulted then set on fire by her attacker; a man is forced to amputate part of his leg after it is caught in a drive shaft; an act of kindness backfires on a motorist.

Jayne fights to save Eduardo after he is kidnapped, tortured, confined to a box and shot twice.

Danielle is shot point blank in the head by a 14 year old boy; Amy falls 60 feet into a rocky ravine; Mark is attacked with a knife on his boat.

A woman is abducted at knife-point; a farmer rips his hand off to escape from a combine harvester; a girl is left for dead after having her throat slit.

A strange Mardi Gras sees the cancellation of traditional parades, but not the end of emergencies, as the EMT crew responds to a vehicle-streetcar collision, a motorcycle accident, a house fire, and potential cardiac arrest.

Strange events are afoot across New Orleans, as the first responders must treat a stabbing and a dog bite on Bourbon Street, a pregnant woman in distress, and an overturned vehicle that could go from bad to worse.

The heavy response to an officer's shooting leaves emergency medical technicians in an agonizing wait for police backup; firefighters work to extinguish a flaming car.

The unexpected reigns in the city of New Orleans as EMS responders answer calls about a child shooting, a multiple-vehicle car accident, a reported suicide attempt, and a veteran struggling with a drug overdose.

EMS first responders keep their cool and maintain their spirits as they face a series of challenges across New Orleans, including a shooting and stabbing victim and a woman whose slot machine experience takes a bizarre turn.

EMT first responders help a man stabbed in the head, a screaming woman who stumbles onto a New Orleans levee, and a car accident that results in an overturned vehicle with a victim trapped inside.

Family matters take center stage as one EMT technician prepares for the birth of his child, two others prepare for an emergency delivery.

First responders bring a combination of professionalism and passion for the job as they encounter a gunshot victim, a drug overdose, a reported strangulation, a seizure and a house party threatening to spin out of control.

An EMS captain juggles the challenges and rewards of being a wife and mother of twins with the never-ending drama of the job; the shift includes a bloody car accident, a major apartment fire and multiple victims struggling to breathe.

Saturday night fever grips New Orleans as the EMTs respond to a gruesome stabbing, an assault with a beer bottle, a car accident involving an infant, and a combative patient who tries biting the hands that treat him.

The EMT team must band together to treat multiple major vehicle accidents, patients losing consciousness, and face breathing and heart ailments; a woman has been assaulted by her significant other.

The team faces a slew of dramatic nightshift calls including a pregnant woman who has been assaulted, a 4-year-old boy with abdominal pain, a gunshot victim, and a potentially devastating car accident involving the St. Charles trolley.

An EMS captain juggles the challenges and rewards of being a wife and mother of twins with the never-ending drama of the job; the shift includes a bloody car accident, a major apartment fire and multiple victims struggling to breathe.

Saturday night fever grips New Orleans as the EMTs respond to a gruesome stabbing, an assault with a beer bottle, a car accident involving an infant, and a combative patient who tries biting the hands that treat him.

The EMT team must band together to treat multiple major vehicle accidents, patients losing consciousness, and face breathing and heart ailments; a woman has been assaulted by her significant other.

The team faces a slew of dramatic nightshift calls including a pregnant woman who has been assaulted, a 4-year-old boy with abdominal pain, a gunshot victim, and a potentially devastating car accident involving the St. Charles trolley.

Family matters take center stage as one EMT technician prepares for the birth of his child, two others prepare for an emergency delivery.

First responders bring a combination of professionalism and passion for the job as they encounter a gunshot victim, a drug overdose, a reported strangulation, a seizure and a house party threatening to spin out of control.

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Alec and Kaleb interview patients and their families, and how their lives have been changed because of the life-changing pediatric specialty care they received at Shriners Hospitals for Children®.

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PhD student puts his Criminology studies to practice.

Reign of terror by a caring husband by day, serail rapist by night.

IT whizkid uses hi-tech to trick women.

A local journalist seems to know a lot about the mysterious deaths of several women.

Five prostitutes were discovered dead over ten days in 2006 most likely killed by someone they knew.

Sex-obsessed killer had a family, degree, and respected profession.

Real estate agent is kidnapped and kept inside a wheelie bin while her captor demands ransom.

A convicted rapist charms and abducts girls and boys on Facebook.

Spain became a sanctuary for British criminals in the 1990s; one of the fugitives, David Baxendale, proved to be a dangerous man for anyone who ventured too close.

Mark Shirley's desires drove him to torture, stab, and murder a long list of women.

Investigators Lise Olsen and Fred Paige examine the confessions of Edward Harold Bell to determine if the inmate may have been responsible for murdering 11 teenage girls in the 1970s.

Prisoner Edward Harold Bell retracts his confession; the investigators uncover shocking inconsistencies and unlawful police tactics when they look into the only man ever convicted for any of the 11 murders.

Investigators Lise Olsen and Fred Paige find evidence that puts Edward Harold Bell at the epicenter of a gruesome map.

The discovery of physical evidence from a 46-year-old crime provides a possible DNA link; the investigators interview a woman who describes being kidnapped at gunpoint and raped by Edward Harold Bell.

Lise and Fred head to Panama City to probe Edward Harold Bell's lost years; the investigators hope a message from Bell's former girlfriend may induce him to talk.

Lise and Fred face mounting pressure to find definitive proof that links Bell to the Eleven as his parole date draws near.

Investigators Lise Olsen and Fred Paige find evidence that puts Edward Harold Bell at the epicenter of a gruesome map.

The discovery of physical evidence from a 46-year-old crime provides a possible DNA link; the investigators interview a woman who describes being kidnapped at gunpoint and raped by Edward Harold Bell.

Lise and Fred head to Panama City to probe Edward Harold Bell's lost years; the investigators hope a message from Bell's former girlfriend may induce him to talk.

Lise and Fred face mounting pressure to find definitive proof that links Bell to the Eleven as his parole date draws near.

Investigators Lise Olsen and Fred Paige examine the confessions of Edward Harold Bell to determine if the inmate may have been responsible for murdering 11 teenage girls in the 1970s.

Prisoner Edward Harold Bell retracts his confession; the investigators uncover shocking inconsistencies and unlawful police tactics when they look into the only man ever convicted for any of the 11 murders.

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In this compelling investigation, John Walsh delves into OmegaXL and its natural origins. Discover how this innovative supplement can provide relief from joint pain and improve your quality of life, all grounded in extensive research.

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Bowman, as international president of the Outlaws Motorcycle Club, ordered kidnappings, fire bombings, assaults and murders.

Anthony Shea, one of the most prolific bank and armored truck robbers.

Alejandro Corredor is Kansas City's cocaine pipeline, moving massive shipments from Mexico's Sinaloa Cartel.

Pistol Pete and his underlings incorporated the gang Sex, Money, Murder in an effort to launder drug money and expanded their operations outside New York.

Joey Gallo rises from the slums of Brooklyn to take on the biggest mafia dons of the 1950s and 1960s.

Tommy Pitera became one of the most violent men of all time in the 1980's; betrayal brought the mob killer to justice.

A group of ruthless Irish punks called the "Westies" terrorize Hell's Kitchen in New York City in the the 1970s.

Heroin kingpin Leroy "Nicky" Barnes turns government informant, destroying the drug trafficking empire he took so long to build.

Richard Kuklinski lived a shocking double life; suburban husband and father at home, and brutal contract killer on the streets.

As leader of Murder, Inc., Albert Anastasia became one of the most vicious and feared mob bosses of the twentieth century.

Two of America's most powerful and feared mob bosses, Santo Trafficante Sr. and his son, ruled a criminal empire that stretched from the Gulf Coast to the Caribbean.

Virginia Hill, Arlyne Brickman and Karen Hill are mob ladies with looks that could kill and the connections to take out anyone in their way.

John Gotti Jr. attends New York Military Academy as his father rises to power in the world of organized crime; in his 20s, Gotti Jr. becomes a made member of the Gambino crime family.

The FBI focuses on taking down John Gotti; Gotti Jr. becomes the acting boss of the Gambino crime family after his father is convicted and sentenced to life in prison; Gotti Jr. resolves to quit the mob and pursue life as a civilian.

John Gotti Jr. attends New York Military Academy as his father rises to power in the world of organized crime; in his 20s, Gotti Jr. becomes a made member of the Gambino crime family.

The FBI focuses on taking down John Gotti; Gotti Jr. becomes the acting boss of the Gambino crime family after his father is convicted and sentenced to life in prison; Gotti Jr. resolves to quit the mob and pursue life as a civilian.

Two of America's most powerful and feared mob bosses, Santo Trafficante Sr. and his son, ruled a criminal empire that stretched from the Gulf Coast to the Caribbean.

Virginia Hill, Arlyne Brickman and Karen Hill are mob ladies with looks that could kill and the connections to take out anyone in their way.

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Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

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A woman is raped, shot three times and left for dead; a man is caught in a blizzard that threatens to bury him alive; two boys survive a plane crash.

A pregnant woman is abducted, raped and left to die; a man faces freezing to death after a plane crash; a man must play dead to fight for his life.

A pregnant woman is attacked by her neighbor; a young girl is abducted and held captive; a hiker spends three days crawling down a mountain after breaking his ankle.

A mother is abducted by a man who threatens to shoot her baby; a plane crash leaves a man swimming for his life; a woman must play dead to stay alive.

Newly elected sheriff Mark Lamb sends six volunteers into the Pinal County Detention Center on a mission to uncover valuable intelligence about the gangs, drugs and operational issues that plague his facility.

With three participants in the jail and two more on their way in, Sheriff Lamb's mission-based program is off to the races.

With all seven participants embedded in the facility, some struggle to maintain their distance from one another; one participant threatens to bring the whole program to an abrupt end.

As the participants begin to focus on their missions, some find early success while others are met with immediate interference; Sheriff Lamb is forced to make a tough decision.

The participants are tested by thieves and the racial politics of jail, forcing them to become either targets and victims, or threats and aggressors.

David climbs the ranks in the pod and struggles to remember what side he is on; Abner is tested when one of his own commits an offense; the women suspect that they are being unfairly targeted by the DOs.

More than halfway through their time in jail, the participants struggle to make progress on their missions; as pod drama boils over, some hit their breaking point.

The participants struggle with race politics, jailhouse thieves, and protecting their cover stories; the secrets become too difficult for one participant to keep.

The sheriff and his team face a tough decision; the consequences of one participant's actions put the remaining participants in very real danger.

When a participant's cover is blown, Sheriff Lamb and his team must decide whether to end the program early or risk the lives of the remaining participants.

For the first time, all seven participants meet with the sheriff and his team to discuss the craziest moments from their time in the Pinal County Jail.

The sheriff and his team face a tough decision; the consequences of one participant's actions put the remaining participants in very real danger.

When a participant's cover is blown, Sheriff Lamb and his team must decide whether to end the program early or risk the lives of the remaining participants.

For the first time, all seven participants meet with the sheriff and his team to discuss the craziest moments from their time in the Pinal County Jail.

More than halfway through their time in jail, the participants struggle to make progress on their missions; as pod drama boils over, some hit their breaking point.

The participants struggle with race politics, jailhouse thieves, and protecting their cover stories; the secrets become too difficult for one participant to keep.

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In this compelling investigation, John Walsh delves into OmegaXL and its natural origins. Discover how this innovative supplement can provide relief from joint pain and improve your quality of life, all grounded in extensive research.

Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

A man, high on the drug PCP, goes on a rampage, stabbing his 11-year-old daughter and viciously attacking and stabbing a neighbor and her son; a man is beaten unconscious by his building contractor.

A young nurse is abducted and tortured by a serial killer; a mother and her daughter are trapped in their attic during a flash flood.

Three survivors from UA Flight 232 relive the aviation disaster; a young woman is violently assaulted by two men.

A passenger is picked to die by hijackers who take control of her EgyptAir flight; a surfer loses half his blood in a shark attack; a young mother is assaulted in front of her 3-year-old son.

A fugitive is wanted for second-degree rape of a young woman.

ICE Supervisor Agent Tommy Kilbride searches for a fugitive known as Punto Com, a computer expert suspected of identity theft and wanted for being in the United States illegally after facing deportation for wire fraud.

A tipster helps investigators capture a home-invasion suspect.

Commander DePaul pulls together a special group when INTERPOL informs him that a kidnapping and murder suspect has been tracked to the New York area.

When law enforcement need's to catch the most dangerous fugitives..they call the Manhunters.

A fugitive is a twice-convicted pedophile who grooms his victims over time.

The team tracks a fugitive through the coastal towns and rural mountainsides of Puerto Rico.

Detective Roxanne Lopez organizes a tactical strike involving over 100 U.S. Marshals and area law enforcement officers in an attempt to capture 65 fugitives who have been charged with serious crimes.

Thirty handguns are stolen from a gun store, through the roof.

Commander DePaul and Deputy Mendez search for an alleged gang member who escaped from custody.

The team hunts for a Jamaican police officer who allegedly shot and killed a ten-year-old girl.

Senior Investigator Mike Romani searches for a fugitive who fled New York, violating his parole, and is wanted for questioning in a sexual assault case.

Detectives in Little Rock, Ark., search for a serial robber whose crimes are becoming increasingly violent and have already claimed one life.

A family member's testimony provides key information in a case involving two brothers, one of whom died as a result of blunt trauma to the head.

A 15-year-old boy is shot to death on a neighborhood street.

Detectives investigate the stabbing of a young man in a convenience store.

A witness claims to have seen an older man gun down a young man and then speed away; detectives investigate the crime based on the witness's description and begin to realize they have been led astray.

A young man is found dead on his front porch; the victim's girlfriend tells detectives that a visit by some friends turned violent.

A 15-year-old boy is shot to death on a neighborhood street.

Detectives investigate the stabbing of a young man in a convenience store.

A witness claims to have seen an older man gun down a young man and then speed away; detectives investigate the crime based on the witness's description and begin to realize they have been led astray.

A young man is found dead on his front porch; the victim's girlfriend tells detectives that a visit by some friends turned violent.

Detectives in Little Rock, Ark., search for a serial robber whose crimes are becoming increasingly violent and have already claimed one life.

A family member's testimony provides key information in a case involving two brothers, one of whom died as a result of blunt trauma to the head.

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Alec and Kaleb interview patients and their families, and how their lives have been changed because of the life-changing pediatric specialty care they received at Shriners Hospitals for Children®.

The crew of a ferry abandons the boat and its passengers when the vessel begins to sink; a woman is trapped with an attacker for days; a man is attacked by his neighbor.

Kidnapped and marched through the Philippine jungle; impaled in the neck by a branch; attacked by a knife-wielding intruder.

Two friends must fight for their lives when their plane goes down in the ocean; four men break into a family's home and threaten to shoot a woman in front of her daughters; a woman is abducted by an armed robber.

A store manager is savagely attacked by robbers; a former Marine is stranded on a mountain in a blizzard; a woman is kidnapped at gunpoint by her boyfriend.

The Zodiac killer provokes the police by sending clues to the media.

Police hunt for a man who murders women in Iowa hotels; police get a killer to confess.

A tipster's call helps solve the murder of the heir to the U-Haul fortune; new fingerprint technology helps solve a decades-old murder.

An undercover agent solves a 15-year-old crime; a former state trooper becomes the prime suspect in his wife's death.

A wife goes missing; a gas-station attendant is shot.

A cell phone and an ATM card lead to the apprehension of a rapist.

A killer of four goes free until a detective finds key evidence on a coffee cup.

Fifteen years after a husband is convicted of murder, police discover that he may have been wrongly accused.

Discovery of a human scalp helps convict a murderer; teen kidnaps, tortures and kills younger boys.

The infant subject of a child-custody dispute is found burned; a body is discovered in a home's crawlspace.

A murderer's ex-wife phones in a tip; a mother keeps the skeletal remains of the child she killed in a footlocker.

A woman helps to solve her mother's murder; an officer solves the murder of a newspaper-delivery woman.

Discovery of a human scalp helps convict a murderer; teen kidnaps, tortures and kills younger boys.

The infant subject of a child-custody dispute is found burned; a body is discovered in a home's crawlspace.

A murderer's ex-wife phones in a tip; a mother keeps the skeletal remains of the child she killed in a footlocker.

A woman helps to solve her mother's murder; an officer solves the murder of a newspaper-delivery woman.

A killer of four goes free until a detective finds key evidence on a coffee cup.

Fifteen years after a husband is convicted of murder, police discover that he may have been wrongly accused.

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Alec and Kaleb interview patients and their families, and how their lives have been changed because of the life-changing pediatric specialty care they received at Shriners Hospitals for Children®.

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A woman fights back when attacked in her home; A family survives shark infested waters; a restaurant manager is left for dead.

A hitchhiker turns on the two girls who pick him up; three men are stranded on an island for 13 days; two people are kidnapped at gunpoint by a hitchhiker.

A couple wake up to find their home surrounded by a cloud of chlorine gas; a couple are beaten by a mugger; a woman is attacked and left for dead.

Two gunmen abduct and assault a 16-year-old girl; a deer hunter drags himself up a dry creek bed after falling out of a tree and breaking both legs; a college student becomes a gunman's human shield.

JaRay Wilson texted her mother just minutes before she vanished, and the teen's friends, family and community searched for answers for over a year; someone from JaRay's inner circle later surfaced with shocking details.

When Deserae Turner doesn't come home after school, her mother and friends begin texting her incessantly; a massive search ensues and 47 of her friends are questioned; her Snapchat turns out to be the key to the mystery.

Residents of small-town Robeson, Penn. were stunned when 23-year-old Ashley Kline went missing on New Year's Eve; the gruesome truth rocked the community.

The missing and murder rates of Indigenous women are disproportionately higher than any other group, so when beautiful Jalajhia Finklea vanishes the day before her 18th birthday, her Wampanoag tribe members immediately take action.

When 22-year-old Molly Jane Matheson doesn't show up for work, her mother, Tracy, drives to her Fort Worth, Texas, apartment to check on her; Tracy's grim discovery uncovers a string of related crimes that inspire Molly's family to fight for change.

When mother-of-two Deanna Cook misses her daily call to her mom, her family worries that Deanna's stalker may have something to do with it; her family's 911 call falls on deaf ears and they are forced to make a discovery.

A defense attorney and a paralegal become friends as they work together in Los Angeles.

Another girl and a secret come between two unlikely best friends, leading to a gruesome murder.

A hidden attraction turns to jealousy setting off a chain reaction of anger and revenge between two friends.

After being bombarded by requests for money, a lottery winner seeks the help of his best friend to manage his money.

Lula and Linda are best friends and perfect neighbors but one of them will do anything to make her dreams come true.

The stories of seven suspects featured in the first season of "I Killed My BFF.".

A hidden attraction turns to jealousy setting off a chain reaction of anger and revenge between two friends.

After being bombarded by requests for money, a lottery winner seeks the help of his best friend to manage his money.

Lula and Linda are best friends and perfect neighbors but one of them will do anything to make her dreams come true.

The stories of seven suspects featured in the first season of "I Killed My BFF.".

A defense attorney and a paralegal become friends as they work together in Los Angeles.

Another girl and a secret come between two unlikely best friends, leading to a gruesome murder.

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Learn what's behind mental decline with age, and how to improve memory, focus and concentration with NeuroQ's Darrin Peterson and Dale Bredesen MD.

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An 11-year is left orphaned and to drown on a sinking yacht; a worker is buried alive when an earthquake strikes; a truck driver's cab is invaded by armed men.

A missionary working in Haiti is shot and held for ransom by a gang; a man goes into a flooding underground cavity to rescue two co-workers; a man viciously assaults his wife.

A woman plays dead to escape her abductor; an endurance athlete falls 60 feet in a remote canyon; a couple risk their lives to protect their children.

A young woman and her friend are shot execution style; two strangers are caught in a deadly train collision; a young girl escapes her abductors only to be assaulted my another man.

Emergency medical responders on the New Orleans night shift race to save victims of a drive-by shooting and a serious car accident, all against the backdrop of the continuing pandemic.

Mardi Gras proves hectic for the responders; a man impales his hand on a fence, while another is stabbed in the face; the search for armed robbers leads to a high-speed chase.

EMS responders face an unpredictable night of crises, including a violent facial attack, a high school football injury, and a heroin addict's emotional vow.

The legendary French Quarter takes center stage for a busy night of EMT action, as the technicians treat multiple unconscious patients, a young woman assaulted at a party, and a car accident featuring a victim with a tragic backstory.

The New Orleans EMT team treats a motorcycle accident victim in danger of losing a limb, multiple seizure sufferers, a young child with a breathing obstruction, and a perpetrator whose condition makes him a danger to himself and others.

Officers Roni and Cooper engage in a foot chase following a stabbing at a nightclub; Fire Rescue's Doug and Stokes try to save the life of a man shot in the throat; the hunt for a carjacker leads Will and Dimitri to the roof of an apartment complex.

Suspected drug dealers are hunted by the police; a violent schizophrenic threatens a group of partygoers.

Police officer Justin joins the SWAT team in a raid; the first responders treat an accident victim with amnesia and a woman who fell off a roof; Arkady bonds with a man who attempted suicide.

The New Orleans EMTs receive calls from every direction, from gunshot victims to seizures to a moped rider playing Pokemon Go.

The cases get wild on Halloween night; Tony and Dave treat a woman shot in the chest; Will and Dimitri go into detective mode to locate a shooter; Robb and Bethany track a fleeing suspect who believes he can hide in a trash container.

Air Service backs up Pierre and Jerry during a high-speed car chase through the streets of Tampa; Rush and Benny restrain a combative patient; Stokes and Doug transport a victim of sexual assault; a mother faces a heartbreaking decision.

Police shoot a man; Tony and Dave treat a stabbing victim; Stokes and Mayville work to extinguish a grocery store fire.

The New Orleans EMTs receive calls from every direction, from gunshot victims to seizures to a moped rider playing Pokemon Go.

The cases get wild on Halloween night; Tony and Dave treat a woman shot in the chest; Will and Dimitri go into detective mode to locate a shooter; Robb and Bethany track a fleeing suspect who believes he can hide in a trash container.

Air Service backs up Pierre and Jerry during a high-speed car chase through the streets of Tampa; Rush and Benny restrain a combative patient; Stokes and Doug transport a victim of sexual assault; a mother faces a heartbreaking decision.

Police shoot a man; Tony and Dave treat a stabbing victim; Stokes and Mayville work to extinguish a grocery store fire.

Suspected drug dealers are hunted by the police; a violent schizophrenic threatens a group of partygoers.

Police officer Justin joins the SWAT team in a raid; the first responders treat an accident victim with amnesia and a woman who fell off a roof; Arkady bonds with a man who attempted suicide.

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The articulate and boastful killer is remembered for terrifying the coastal town of Santa Cruz, where he picked up and dismembered hitchhiking college students in the early 1970s.

In 1989, Richard Mallory is found shot dead in the brush off the side of a Florida highway, just the first of seven murdered men found in a similar setting; their predator is Aileen Wuornos, a woman fleeing from her troubled past.

Known primarily for the murders of University of Florida students, a man's first murders were in his hometown of Shreveport, La.; the man dreamed of having a loving family as an adult, but his dark fantasies drove him to destroy a family instead.

Before he hunted down his first victim in the wilds of Alaska, Robert Hansen was a successful businessman with a family in Anchorage, but his intense feelings would build into a dark desire to exert the ultimate control over 17 victims.

African American women in the Mt. Pleasant neighborhood of Cleveland were vanishing; Anthony Sowell found the control he was so desperate for when he overpowered his first vulnerable victim - a woman only hoping to connect with a friendly face.

One of the most well-known serial killers, Richard Ramirez terrorized Southern California in the mid-1980s, where anyone could be a target of the sadistic murderer.

Exploring what shaped serial killer Arthur Shawcross' trajectory from "Artie Oddball" to murderer; he might have been known for killing women along Rochester's Genesee River, but his first murder was years earlier.

Someone is killing young African American women in Charlotte, N.C., and the police seem unable to stop it; what the police don't realize is that the cases all have a commonality, which is a connection with Henry Louis Wallace.

The bodies of 10 murder victims tied to the sex trade are discovered along a highway, and the identity of the killer remains a mystery five years later.

A profiler reveals that two active serial killers are responsible for the 10 dead bodies, prompting Josh and Rachel to look into a mysterious series of torso killings.

Josh and Rachel investigate the death of a young escort, then probe similarities between a serial murder case in Atlantic City, N.J., and the killings at Gilgo Beach.

Josh and Rachel continue their hunt for the Eastbound Strangler; a sex worker believes she encountered the killer; a call with an anonymous Web detective sends Josh and Rachel to a site where the four women may have been killed.

A chance encounter with the daughter of one of the Daytona Beach serial killer's victims propels Josh and Rachel to investigate a string of leads.

Josh and Rachel begin a cross-country journey to research long-haul truckers who moonlight as serial killers; the filmmakers hear firsthand accounts of the dangers experienced by women who work truck stops.

Police in Albuquerque, N.M., hamper Josh and Rachel's efforts; the filmmakers search for a drifter who left a mysterious message for a local private investigator.

Josh and Rachel search for eight missing women on Albuquerque's West Mesa; a self-admitted serial killer provides a lead too tempting to ignore; a break in the Gilgo Beach case exposes corruption.

A chance encounter with the daughter of one of the Daytona Beach serial killer's victims propels Josh and Rachel to investigate a string of leads.

Josh and Rachel begin a cross-country journey to research long-haul truckers who moonlight as serial killers; the filmmakers hear firsthand accounts of the dangers experienced by women who work truck stops.

Police in Albuquerque, N.M., hamper Josh and Rachel's efforts; the filmmakers search for a drifter who left a mysterious message for a local private investigator.

Josh and Rachel search for eight missing women on Albuquerque's West Mesa; a self-admitted serial killer provides a lead too tempting to ignore; a break in the Gilgo Beach case exposes corruption.

Josh and Rachel investigate the death of a young escort, then probe similarities between a serial murder case in Atlantic City, N.J., and the killings at Gilgo Beach.

Josh and Rachel continue their hunt for the Eastbound Strangler; a sex worker believes she encountered the killer; a call with an anonymous Web detective sends Josh and Rachel to a site where the four women may have been killed.

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From a prison cell, Felipe founded the New York chapter of the Latin Kings street gang; Felipe's own writings would incriminate him.

Barry Mills found his calling as the leader of the white supremacist prison gang the Aryan Brotherhood.

Garcia was the head of a deadly heroin ring in the Bronx; Henao led an ecstasy drug ring out of the Netherlands; Sandra Avila Beltran was a Mexican drug cartel leader.

Quasand Lewis made millions by way of drug trafficking; the federal government launched "Operation Falling Star" in order to take down 'Q' and build the largest drug related prosecution in the history of the state of Michigan.

"Mad Sam" DeStefano had a three-decade reign as a juice loan lender and sadistic enforcer with the notorious Chicago Outfit.

Tommy Lucchese, one of the most successful and notorious members of the Italian-American Mafia, pioneered and perfected labor rackets in New York City's kosher chicken industry, the garment district and the world of professional boxing.

"Big Paul" Castellano serves as a boss of the Gambino crime family during the '70s and '80s, overseeing rackets in construction, pornography and more.

John Gotti starts out as the leader of a group of young thugs in his South Bronx neighborhood and works his way up to a leadership position in the Gambino crime family.

During the 1970's, Anthony Cassa became the under boss of the Lucchese family.

Jimmy Burke was one of the most prolific mob earners in New York history.

Carlos Marcello becomes the mafia boss of New Orleans in 1947 and maintains power for almost four decades.

Joey Massino brought the Bonanno mob family back after it was destroyed by the FBI.