Five Days at Memorial started out as a Pulitzer Prize-winning article published in the New York Times Magazine in 2009, by author Sheri Fink. The book describes events that took place during Hurricane Katrina at Memorial Medical Center in New Orleans, Louisiana when thousands of people, medical staff and patients, were trapped in the hospital without power.
From Wikipedia: The triage system put into effect deprioritized critically ill patients for evacuation, and a number of these patients were euthanized by medical and nursing staff shortly before the entire hospital was evacuated on the fifth day of the crisis. Fink examines the legal and political consequences of the decision to euthanize patients and the ethical issues surrounding euthanasia and health care in disaster scenarios. The book was well received by most critics and won three awards, including a National Book Critics Circle Award for non-fiction.