He swore to do no harm. Instead, he left a trail of bodies across two continents. Dr. Michael Swango, a seemingly charming and gifted physician, harbored a dark secret: a deadly obsession with toxins and a compulsion to kill. This podcast examines the chilling story of Swango's transformation from promising student to one of the most prolific serial killers in history. Listen as we uncover the twisted psychology of a medical monster, tracing Swango's path of deception and murder. Hear firsthand accounts from survivors, investigators, and those who knew him best. Unravel the mystery of how Swango managed to operate within the medical system for so long, leaving a legacy of pain and unanswered questions.