Season 1
How did a popular Chicago businessman and part-time clown become the most prolific serial killer in the 1970s?
How did a popular Chicago businessman and part-time clown become the most prolific serial killer in the 1970s?
A killer terrorized Northern California in the late 1960s and taunted the public with cryptic clues. Can new DNA techniques finally unmask this murderer?
A killer terrorized Northern California in the late 1960s and taunted the public with cryptic clues. Can new DNA techniques finally unmask this murderer?
Jim Jones, a charismatic minister turned madman, ultimately led more than 900 followers to their deaths by mass murder-suicide in a South American jungle.
Jim Jones, a charismatic minister turned madman, ultimately led more than 900 followers to their deaths by mass murder-suicide in a South American jungle.
A teenage thief turned violent predator, Manson had the ability to charm and persuade. He amassed a group of followers and convinced some to commit murder.
A teenage thief turned violent predator, Manson had the ability to charm and persuade. He amassed a group of followers and convinced some to commit murder.
A serial rapist, who meticulously planned his assaults on women, terrorized Northern California for 27 years before police closed in on a potential suspect.
A serial rapist, who meticulously planned his assaults on women, terrorized Northern California for 27 years before police closed in on a potential suspect.
In 1990, Florida police were on the hunt to stop a woman serial killer after the bodies of seven men were found scattered along state highways.
In 1990, Florida police were on the hunt to stop a woman serial killer after the bodies of seven men were found scattered along state highways.
Season 2
He is among the most infamous killers in US history. From 1976 to 1977, David Berkowitz terrorized New York City under his self-given moniker: the Son of Sam.
In 1977, New Yorkers were being stalked by a seemingly faceless serial killer known as "Son of Sam." But a twist of fate and a little luck led to his capture.
Dennis Rader, the self-proclaimed "B.T.K." serial killer, terrorized the Wichita, Kansas, area, for decades. Residents were petrified that they would be next.
For years, the BTK killer played a cat-and-mouse game with law enforcement, taunting authorities to catch him. Then he made a critical mistake.
A serial killer terrorized Los Angeles during one of the city's hottest summers on record. His crimes were random, vicious and committed in the name of Satan.
A tip from a teenager helped authorities identify the "Night Stalker" as Richard Ramirez. After they released his photo, Ramirez was nearly killed by a mob.
The Santa Cruz, California, area lived in fear for years of a man dubbed "The Co-Ed Killer," a name given because several of his victims were college students.
By April 1973, Edmund Kemper, 24, had murdered six college students and several members of his family before he was finally captured.
A millionaire heir to a vast real estate fortune was linked to the deaths of his wife, his best friend, and his neighbor.
Six weeks after jumping bail in Galveston, Texas, Durst was caught on a store security camera in Pennsylvania shoplifting a sandwich.
For nearly two decades, a distinguished Marine and trusted doctor left a trail of death and mayhem across two continents.
Dr. Michael Swango took an oath to "do no harm." But suspicious illnesses and deaths followed this once-trusted physician from hospital to hospital.
Season 3
The Golden State Killer committed 13 murders and more than 50 rapes during his decades-long reign of terror. Who was he, and how did he roam free for so long?
After nearly 50 years without an arrest, a new forensic technique brought a major break in the case, finally revealing the serial killer's identity.
Unbeknownst to his suburban neighbors, family man Richard Kuklinski was a cold-blooded killer and part-time hitman-for-hire known as the "Iceman."
Richard Kuklinski had gotten away with murder for years and investigators had little evidence to tie him to his crimes. Detectives sent in an undercover agent.
A string of fires plagued California in the '80s and '90s, one of which killed four people. A respected fire captain was certain an arsonist was on the loose.
Authorities were shocked to learn that the arsonist setting fires across California turned out to be a renowned fire investigator.
One of the most infamous rapists and serial killers in Alaska's history kidnapped young women for more than a decade.
In a shocking confession, serial killer Robert Hansen described how he lured his victims and committed 17 murders and more than 30 rapes.
In 1974, six members of the DeFeo family were found murdered inside their seaside home. The horrific crime inspired the legend of the Amityville horror.
What really happened that night in Amityville? Para-psychologists and psychics descended on the house to investigate strange and unusual claims.
In 1968, a serial killer abducted, raped and left an 8-year-old girl for dead. She survived the attack, but the suspect evaded police, and his spree continued.
Rodney Alcala had murdered at least five women when he appeared on TV's "The Dating Game," where he won a date with a contestant. Then his killing continued.
Season 4
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 2 murders 1200 miles away uncover the Hillside Stranglers.
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 2 murders 1200 miles away uncover the Hillside Stranglers.
Samantha Koenig was closing shop in Anchorage, AK when a man known in the community as a business owner and caring father, approaches. After kidnapping Samantha, an intense manhunt took authorities on a cross country investigation.
Samantha Koenig was closing shop in Anchorage, AK when a man known in the community as a business owner and caring father, approaches. After kidnapping Samantha, an intense manhunt took authorities on a cross country investigation.
John Gotti's expensive suits and swagger earned him the nickname Dapper Don. But, in reality, he was a man to be feared. A ruthless, dangerous mafia gangster who ordered hits on his enemies, his friends, and anyone who crossed him.
John Gotti's expensive suits and swagger earned him the nickname Dapper Don. But, in reality, he was a man to be feared. A ruthless, dangerous mafia gangster who ordered hits on his enemies, his friends, and anyone who crossed him.
From 1987 to 1992, rapes, abductions, and murders of young women occurred north of the U.S.-Canadian border. A tip led cops to an unlikely suspect. A blond, blue-eyed accountant who lived with his wife in a pink house in the suburbs.
From 1987 to 1992, rapes, abductions, and murders of young women occurred north of the U.S.-Canadian border. A tip led cops to an unlikely suspect. A blond, blue-eyed accountant who lived with his wife in a pink house in the suburbs.
When college-aged women in Charlottesville, VA start missing, the search for answers leads authorities to local star athlete Jesse Matthew Jr. In a shocking story, two women are killed, but another survives to bring the murderer to justice.
When college-aged women in Charlottesville, VA start missing, the search for answers leads authorities to local star athlete Jesse Matthew Jr. In a shocking story, two women are killed, but another survives to bring the murderer to justice.
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.