Graeber, is the only reporter than Charles Cullen granted an interview to and he tells the story in an engaging and informative manner. He uses a variety of sources to investigate the sixteen years, Cullen worked as a nurse.
The account is chilling and the lack of action the hospitals took in preventative measures is outrageous. The amount of deaths, Cullen is responsible for is uncountable, due to a variety of reasons. Cullen is among one of the scariest person's you will read about.
Cullen is an intelligent, confused, wicked person who has the compulsion to kill. He feels no remorse or regret. This read is worth your time.