A look at the deal makers and hangers-on who attached themselves to Aileen Wuornos, who is known as America's first female serial killer.

More than 900 Americans died in an isolated jungle in northern Guyana in November 1978; Jim Jones has gone down in history as a madman who drove his followers to suicide, but the truth is more complicated and tragic than that.

In Northern California, a masked predator meticulously plans his sexual assaults by studying the habits and routines of his female prey; after 27 years on the loose, police close in on the man they believe to be the NorCal Rapist.

Charles Manson is a violent predator who has powers of persuasion that make it possible for him to convince his hippie followers to brutally murder innocent strangers

Charles Manson is a violent predator who has powers of persuasion that make it possible for him to convince his hippie followers to brutally murder innocent strangers

In Northern California, a masked predator meticulously plans his sexual assaults by studying the habits and routines of his female prey; after 27 years on the loose, police close in on the man they believe to be the NorCal Rapist.

A look at the deal makers and hangers-on who attached themselves to Aileen Wuornos, who is known as America's first female serial killer.

In 1977, the city of New York was being stalked by a seemingly faceless serial killer known as, “Son of Sam.” But after his final shooting took him to Brooklyn, a twist of fate and a little luck- led to his capture. The episode features interviews with detectives and psychologists about what he said after his arrest, why he did it… and how this quiet, soft spoken 24-year old post office employee from Yonkers turned in a serial killing monster.

This is the unbelievable story of Robert Durst, the millionaire heir to a vast real estate fortune who has been linked to the deaths of his wife, his best friend, and his neighbor. For decades, Durst has been living under a cloud of suspicion. His first wife went missing in 1982, but the case went cold when there were no leads — and no body. Then, 18 years later, just as the investigation into her disappearance was re-opened, Durst’s best friend and confidante, Susan Berman, was shot dead inside her home. At the same time, Durst was hiding in Galveston, Texas disguised as a deaf mute woman. But when his neighbor’s dismembered body turns up in Galveston Bay, Durst’s story begins to unravel. He is quickly arrested, but he’s not in custody for long. After posting bail, he goes on the run. Where is Robert Durst?

Six weeks after jumping bail in Galveston, Texas, Robert Durst is caught on a store security camera in Pennsylvania shoplifting a sandwich and is quickly sent back to Galveston to stand trial for the murder of his neighbor, Morris Black. He would tell a jury he killed Black accidentally in self-defense, and he’d be acquitted of murder. But his story doesn’t end there. Durst decides to give a revealing look into his life in the six-part series “the Jinx” where in the final episode he is overheard in the bathroom muttering to himself, “killed them all, of course.” Before the episode airs, Durst is arrested for the murder of his best friend, Susan Berman. Now as he stands trial in Los Angeles, will his own words come back to haunt him?

Michael Swango – High school valedictorian; Distinguished Marine; Trusted Doctor… Serial Killer. For nearly two decades, this physician-turned-murderer left a trail of death and mayhem across two continents. Hear from the local and federal authorities who brought his reign of terror to an end, while facing down one of the most crafty and cunning medical serial killers in US history. Interviews include survivors from Michael Swango’s poisoning sprees, his former colleagues, families of his victims, federal and local investigators, and a Zimbabwe journalist who helped uncover a series of murders in a rural African hospital.

Dr. Michael Swango took an oath to “do no harm”… But he did just the opposite. Suspicious illnesses and deaths followed this once-trusted physician-turned-killer from hospital to hospital for nearly two decades and across two continents. His prey – unsuspecting coworkers and helpless patients. What would make a well-respected doctor become one of the most prolific serial killers in the U.S.? Interviews include survivors, Swango’s former colleagues, families of his victims, federal and local investigators, and a Zimbabwe journalist who helped uncover a series of murders in a rural African hospital.

The Butcher Baker was one of the most prolific serial killers in Alaska's history. For more than a decade, he kidnapped young women and brought them into the wilderness where he stalked them like prey. He got away with his crimes for years, living a double life as a soft-spoken baker and church-going family man by day, and prowling the streets and strip clubs at night, looking for more victims. But when one woman escaped and lived to tell her harrowing story, police made a shocking discovery inside Robert Hansen's home, which would expose the baker as the monster he truly was.

The Butcher Baker was one of the most prolific serial killers in Alaska's history. For more than a decade, he kidnapped young women and brought them into the wilderness where he stalked them like prey. He got away with his crimes for years, living a double life as a soft-spoken baker and church-going family man by day, and prowling the streets and strip clubs at night, looking for more victims. But when one woman escaped and lived to tell her harrowing story, police made a shocking discovery inside Robert Hansen's home, which would expose the baker as the monster he truly was.

A string of horrifying fires plagues California in the Eighties and Nineties, one of them fatally trapping four people inside. Are these raging infernos accidental or is someone setting them deliberately? Years of meticulous investigation leads law enforcement to uncover a wave of terrifying fires set by a man some call the most prolific arsonist of the Twentieth century, who turns out to be none other than renowned fire investigator Captain John Orr. In a game of cat and mouse, colleagues discover dark secrets behind the man who thrived on the chaos of igniting the fires he was supposed to be fighting.

A string of horrifying fires plagues California in the Eighties and Nineties, one of them fatally trapping four people inside. Are these raging infernos accidental or is someone setting them deliberately? Years of meticulous investigation leads law enforcement to uncover a wave of terrifying fires set by a man some call the most prolific arsonist of the Twentieth century, who turns out to be none other than renowned fire investigator Captain John Orr. In a game of cat and mouse, colleagues discover dark secrets behind the man who thrived on the chaos of igniting the fires he was supposed to be fighting.

Sammy "The Bull" Gravano was the right-hand man to mafia kingpin, John Gotti. He carried out multiple murders. After his arrest, he broke the sacred oath of silence and cut a deal with the government, testifying against his former boss.

Sammy "The Bull" Gravano was the right-hand man to mafia kingpin, John Gotti. He carried out multiple murders. After his arrest, he broke the sacred oath of silence and cut a deal with the government, testifying against his former boss.

In the fall of 1977, bodies of young women begin piling up in LA. Almost all of the victims are nude, discarded on hillsides showing signs of torture. It is nearly a year before two murders 1200 miles away uncover the Hillside Stranglers.

In the mid 1980s, Kansas City women start to vanish; they all share one thing in common, an odd connection to the same man who calls himself "The Slave Master"; police must be just as wily if they want to bring down this serial killing sadist.

Identical twins aren't always alike, especially when one might be a killer.

Richard Francis Cottingham (born November 25, 1946) is a convicted serial killer and rapist who murdered at least eighteen young women and girls in New York and New Jersey between 1967 and 1980. He was nicknamed as: The New York Ripper, The Torso Killer and The Times Square Killer. Cottingham was arrested on May 22, 1980 and convicted of numerous murders. He was sentenced to multiple life sentences in prison. In 2009, decades after his first five murder convictions, Cottingham told a journalist that he had committed at least 80 to 100 "perfect murders" of women in various regions of the United States.

Cops wonder if a series of deaths means a black widow is spinning her web.

Nurse Judy Buenoano survives a string of unimaginable tragedies, including two house fires, a mysterious canoe accident, and the loss of her husband, boyfriend, and child. It is discussed whether Judy is just a magnet for bad luck or if something far more sinister is at play.

David Matusiewicz, Christine Belford, and their four children live the American Dream. But when David's parents move in, his family's need for control over the children leads to allegations of abuse, a 19-month kidnapping, and ultimately, a brutal murder.