During the early 1970s, more than three dozen teenage boys went missing from the working-class neighborhood of Houston Heights, in the south of Texas. The parents of a number of these boys received strange postcards from their sons, telling them that they were fine and that they had found jobs somewhere else in the state, anywhere from Dallas to Austin. Then, in August 1973, the Houston Police Department made a shocking discovery; something that would later become known as the Houston Mass Murders.

Captured in the 1930s before the words psychopath and pedophile were part of common vernacular, notorious serial killer Arnold Sodeman murdered four young girls with little thought of remorse. Without guilt, the evil serial killer strangled them to death with their own clothing and left their small bodies alone in the Australian brush, earning himself a chilling position in the annals of Australian crime.

In 1985, Charles Ng and Leonard Lake were spotted shoplifting. Ng escaped, but Lake's capture led police to a concrete bunker in the Sierra Nevada foothills, where they discovered the grisly evidence of an orgy of sex crimes, torture, and murder that claimed at least 16 victims. Lake committed suicide: Ng fled to Canada, where he was tracked down and extradited to California. This 14-year, $10 million legal case was the costliest and longest criminal prosecution in California history. 

The names of notorious serial killers are usually well-known; they echo in the news and in public consciousness. But most people have never heard of Israel Keyes, one of the most ambitious and terrifying serial killers in modern history American Predator is the ambitious culmination of years of interviews with key figures in law enforcement and in Keyes's life, and research uncovered from classified FBI files. Callahan takes us on a journey into the chilling, nightmarish mind of a relentless killer, and to the limitations of traditional law enforcement.

In July 1981, just days after his release from jail, Clifford Olson Junior unleashed hell on British Columbia. He kidnapped, raped, and killed six children and teenagers in a single month. While the previous missing children had been treated like runaways, the police were now hunting a serial killer. The Beast is a chilling account of Clifford Olson Junior and one of the most disturbing true-crime stories in Canada’s history. Ryan Green’s riveting narrative draws the listener into the real-life horror experienced by the victims and has all the elements of a classic thriller.

On Christmas Eve in 1985, a hunter found a young boy's body along an icy corn field in Nebraska. The residents of Chester, Nebraska buried him as "Little Boy Blue", unclaimed and unidentified - until a phone call from Ohio two years later led authorities to Eli Stutzman, the boy's father. Gregg Olsen's Abandoned Prayers is an incredible true story of murder and Amish secrets.

Colorado, 1976. When Reverend Mike Fuller and his beautiful wife, Sharon, arrive in the sleepy town of Rocky Ford, local residents think something’s off about the new couple. The God-fearing minister is gruff and cold, while charismatic Sharon has her husband wrapped around her finger.

As investigators brought out the bagged remains of several dozen young men from a small Chicago ranch home and paraded them in front of a crowd of TV reporters and spectators, attention quickly turned to the owner of the house. John Gacy was an upstanding citizen, active in local politics and charities, famous for his themed parties and appearances as Pogo the Clown. But in the winter of 1978-79, he became known as one of many so-called “sex murderers” who had begun gaining notoriety in the random brutality of the 1970s.

Joseph Duncan had been convicted of raping and torturing a 14-year-old boy in Tacoma, WA. On the Internet he proudly boasted of his perversions. But the system turned Duncan loose, and no one would stop him from committing an even more horrifying act. This time he prepared meticulously. He chose his getaway car. He chose his murder weapon and loaded a video camera. Then, when he saw young Shasta and Dylan Groene playing outside their Idaho home, he struck - killing their mother and her boyfriend, and vanishing into the night with Shasta and Dylan.

The year 1969: The hippie scene is vibrant in Provincetown, Massachusetts. Long-haired teenagers roam the streets, strumming guitars and preaching about peace and love...and Tony Costa is at the center of it all. To a certain group of smitten young women, he is known as Sire—the leader of their counterculture movement, the charming man who speaks eloquently and hands out hallucinogenic drugs like candy. But beneath his benign persona lies a twisted and uncontrollable rage that threatens to break loose at any moment. Tony Costa is the most dangerous man on Cape Cod.