E179 - 179. Donald Harvey aka "The Angel of Death"

Patients trusted him with their lives. Instead, they were slowly dying under his care.

Behind a hospital smile lurked one of the most prolific medical serial killers in American history.

In the 1970s and 80s, hospital orderly Donald Harvey quietly moved between patient rooms in hospitals across Ohio and Kentucky. To coworkers, he seemed gentle, soft-spoken, helpful, even compassionate. But behind closed doors, something far darker was unfolding. Over nearly two decades, dozens of vulnerable patients died under suspicious circumstances as Harvey poisoned food, tampered with oxygen, and suffocated those who trusted him to...