He was a victim, groomed and tortured. He was an accomplice, complicit in unimaginable horror. And in a final, shocking twist, he became the one who pulled the trigger.For the first time, get inside the mind of Elmer Wayne Henley Jr., the sole surviving accomplice of Dean Corll, the infamous "Candyman Killer" behind the 1973 Houston Mass Murders. In The Serial Killer's Apprentice, acclaimed forensic psychologist Dr. Katherine Ramsland conducts a series of unprecedented, raw interviews with the man at the center of this tragedy. This is not just a true crime story; it is a chilling journey into the psychological abyss where the line between victim and predator becomes terrifyingly thin.Through Henley's harrowing testimony, you will witness the insidious art of coercion, the slow corrosion of a young mind, and the twisted sense of loyalty that bound him to a monster. The book meticulously chronicles the double life of a boy who was simultaneously a high school student and an instrument of terror, living in a constant state of fear and secrecy.With detailed insights into the psychological toll and the growing weight of shared sin, the narrative builds to the climactic moment of reckoning. It was a single, desperate act-a choice with a gun that ended one life and forever changed another. But his confession was only the beginning.The Serial Killer's Apprentice delves into the legal labyrinth of his trial and the profound psychological questions of survival, compartmentalization, and moral culpability. This is a vital, modern-day warning, revealing the unchanging blueprint of the predator and the vulnerabilities that still exist in our world. It is a story you cannot look away from, a testimony to the chilling truth that monsters are not born, but made.