Now, in chilling detail, the legendary Mindhunter takes us behind the scenes of some of his most gruesome, fascinating, and challenging cases -- and into the darkest recesses of our worst nightmares.

Jack the Ripper. Lizzie Borden. The Zodiac Killer. Certain homicide cases maintain an undeniable, almost mystical hold on the public imagination. They touch a nerve deep within us because of the personalities involved, their senseless depravity, the nagging doubts about whether justice was done, or because, in some instances, no suspect has ever been identified or caught.

In The Cases That Haunt Us, twenty-five-year-FBI-veteran John Douglas, profiling pioneer and master of modern criminal investigative analysis, and author and filmmaker Mark Olshaker, the team behind the bestselling Mindhunter series, explore the tantalizing mysteries that both their legions of fans and law enforcement professionals ask about most. Among the questions they tackle:

Was Jack the Ripper actually the Duke of Clarence, eldest grandson of Queen Victoria, or perhaps a practicing medical doctor? And did highly placed individuals within Scotland Yard have a good idea of the Ripper's identity, which they never revealed? Douglas and Olshaker create a detailed profile of the killer, and reveal their chief suspect.

Was Lizzie Borden truly innocent of the murder of her father and stepmother as the Fall River, Massachusetts, jury decided, or was she the one who took the ax and delivered those infamous "whacks"? Through a minute-by-minute behavioral analysis of the crime, the authors come to a convincing conclusion.

Did Bruno Richard Hauptmann single-handedly kidnap the baby son of Charles and Anne Morrow Lindbergh, the most famous couple in the world, or was he an innocent man caught up and ultimately executed in a relentless rush to judgment in the "crime of the century"?

What kind of person could kill six-year-old JonBenet Ramsey on Christmas night in her own home? Douglas was called in on the case shortly after the horrifying murder, and his conclusions are hard-hitting and controversial. Why, in the face of the majority of public, media, and law enforcement opinion, including former FBI colleagues, does Douglas believe that John and Patricia Ramsey did not murder their daughter? And what is the forensic and behavioral evidence he brings to bear to make his claim?

Taking a fresh and penetrating look at each case, the authors reexamine and reinterpret accepted facts and victimology using modern profiling and the techniques of criminal analysis developed by Douglas within the FBI. This book deconstructs the evidence and widely held beliefs surrounding each case and rebuilds them -- with fascinating and haunting results.

Every crime is a mystery story with a motive at its heart. With the brilliant insight he brought to his renowned work inside the FBI's elite serial-crime unit, John Douglas pieces together motives behind violent sociopathic behavior. He not only takes us into the darkest recesses of the minds of arsonists, hijackers, bombers, poisoners, assassins, serial killers, and mass murderers, but also the seemingly ordinary people who suddenly kill their families or go on a rampage in the workplace.

Douglas identifies the antisocial personality, showing surprising similarities and differences among various types of deadly offenders. He also tracks the progressive escalation of those criminals' sociopathic behavior. His analysis of such diverse killers as Lee Harvey Oswald, Theodore Kaczynski, and Timothy McVeigh is gripping, but more importantly, helps us learn how to anticipate potential violent behavior before it's too late.

In Olathe, Kansas, a balding, pudgy father of four sits in prison convicted on three counts of homicide -- two of capital murder -- and suspected in at least five other disappearances. During the last half of the 1990s, John Robinson exploited the Internet's active world of sadomasochism with horrific results. By haunting chat rooms, he pinpointed vulnerable women who were looking for romance and stalked them on-line, nefariously convincing them of his maturity, sensitivity, and financial stability. He seemed like the perfect man. He enticed these women with offers of a solid relationship and a lucrative job, persuading them to move to his hometown. Once they arrived in Kansas, the women invariably disappeared.

After a dramatic trial and days of intense jury deliberation, Robinson now faces the death penalty. Disturbing as his crimes may be, what's most alarming is how he selected and lured his victims and how willingly they responded. John Robinson expanded the hunting ground, the techniques, and the technology of the sexual predator. He is the world's first-known Internet serial killer.

Law enforcement officers, prosecutors, and the coauthors of Anyone You Want Me to Be have struggled to unravel the enigma that is John Robinson. They reveal what can go wrong in a world where relationships are devoid of physical contact, showing how easily mainstream Americans can be drawn into the dark underground of cybercrime. The Internet has drastically expanded the realm of fantasy -- from the limited confines of physical reality to the worldwide stage of virtual reality -- and anyone can become involved in an on-line seduction. Erotic fantasies, which were once socially off-limits and extremely private, are now instantly accessible. This rapidly growing community masks a sinister truth: With only a computer, an Internet connection, and a knack for creativity, criminals have the power to reach millions of unsuspecting victims while remaining in complete control of their own -- often false -- image. John Robinson was a true innovator in this variety of crime. Through interviews with law enforcement specialists, Web experts, and others, John Douglas and Stephen Singular illustrate, with this case, a much larger -- and more frightening -- pattern of Internet sex and violence.

As technology proliferates in the twenty-first century, so do opportunities for enterprising criminals like John Robinson. No one is better equipped than John Douglas and Stephen Singular to expose the underworld of the Internet and to warn people about the dangers of cyberspace. A cautionary and educational tale about being wary of strangers and false intimacy, Anyone You Want Me to Be is also a terrifying, high-tech story of crime and punishment.

This incredible story shows how John Douglas tracked and participated in the hunt for one of the most notorious serial killers in U.S. history. For 31 years a man who called himself BTK (Bind, Torture, Kill) terrorized the city of Wichita, Kansas, sexually assaulting and strangling a series of women, taunting the police with frequent communications, and bragging about his crimes to local newspapers and TV stations. After disappearing for nine years, he suddenly reappeared, complaining that no one was paying enough attention to him and claiming that he had committed other crimes for which he had not been given credit. When he was ultimately captured, BTK was shockingly revealed to be Dennis Rader, a 61-year-old married man with two children.

This authoritative book represents the data, findings, and implications of a long-term F.B.I.-sponsored study of serial sex killers. Specially trained F.B.I. agents examined thirty-six convicted, incarcerated sexual murderers to build a valuable new bank of information which reveals the world of the serial sexual killer in both quantitative and qualitative detail. Data was obtained from official psychiatric and criminal records, court transcripts, and prison reports, as well as from extensive interviews with the offenders themselves.

Featured in this book is detailed information on the F.B.I.'s recently developed Violent Criminal Apprehension Program (VICAP) and a sample of an actual VICAP Crime Analysis Report Form.

The director of the FBI is dead. Officially it's being called suicide; unofficially, it's a murder. On the first morning of his retirement as head of the FBI's Behavioral Science Profiling Unit, Jake Donovan is summoned back to Quantico -- and into the most dangerous, volatile, and politically charged case of his career.

After suffering a brutal attack from assailants who may have been linked to the director's death, Jake enlists an elite team of "broken wings" -- damaged-goods agents like himself who have been frozen out of the FBI. Equipped with a state-of-the-art airplane that serves as a mobile lab and headquarters, this secretly funded rogue squad of expert mindhunters is going to do what the Bureau can't or won't: follow the trail of evidence, no matter where it leads, no matter whom it implicates.