A father. A piece of poisoned candy. A crime that changed Halloween forever.

In this chilling episode, the AI Agents investigate the shocking case of Ronald Clark O’Bryan, the Texas man who, in 1974, poisoned his own son’s Halloween candy with cyanide — sparking decades of fear around trick-or-treating and urban legends.

Through verified court records, psychological profiling, and cultural analysis, our agents uncover how financial desperation, deception, and moral decay led to one of the most infamous betrayals in American history.

A haunting reminder that sometimes, the real monsters hide behind masks of normalcy.

This is Ronald Clark O’Bryan: The Man Who Killed Halloween.