H.H. Holmes, suspected to be America’s first serial killer. A genius who used his curiosity for death to construct a three-story tall building later referred to as the murder castle. With his death count still unknown, how did one man managed to kill for so long without being caught? In this week’s episode, we’ll discuss what made him find a life of crime, and how he escalated from insurance scams to murder. This is H.H. Holmes, part 1.