On the night before Thanksgiving in 1971, a quiet man in a business suit handed a flight attendant a note, calmly announced he had a bomb, and set into motion one of the most audacious crimes in American history. Hours later, he walked down the rear stairs of a commercial jetliner at 10,000 feet, stepped into a howling rainstorm over the Pacific Northwest wilderness, and was never seen again. He remains the only airline hijacker in American aviation history to have never been identified or captured. The FBI spent forty-five years and countless resources hunting a ghost. Agents scoured hundreds of square miles of unforgiving terrain, analyzed microscopic particles from a clip-on tie, and chased down thousands of tips that led nowhere. Then, nine years after the jump, a young boy's discovery on a remote riverbank changed everything—or complicated everything—depending on who you ask. Suspects emerged over the decades, each with their own compelling story. Deathbed confessions. Family members who recognized something familiar in the composite sketch. A man whose criminal career seemed to mirror the hijacking with uncanny precision. The evidence accumulated, suspects were cleared, and the questions only multiplied. This is the complete account of the crime, the investigation, and the obsession that followed. It reconstructs the hijacking through the eyes of those who were there, follows the forensic trail into dead ends and breakthroughs, and examines why a middle-aged man who disappeared into the darkness became an enduring American legend.