William J.A. Bailey wasn’t a doctor, but he convinced the public to trust him anyway—selling radium-laced water as a cure for nearly everything. One of those believers was Eben Byers, a wealthy athlete who drank more than a thousand doses, slowly poisoning himself until his jaw disintegrated and his skull began to rot before his death. The death of Eben Byers forced the world to finally confront the cost of pseudoscience that goes unchecked.