Deadly Choices

Sheri Fink: The smell of death was overpowering the moment a relief worker cracked open one of the hospital chapel's wooden doors. Inside, more than a dozen bodies lay motionless on low cots and on the ground, shrouded in white sheets. Here, a wisp of gray hair peeked out. There, a knee was flung akimbo. A pallid hand reached across a blue gown.

Within days, the grisly tableau became the focus of an investigation into what happened when the floodwaters of Hurricane Katrina marooned Memorial Medical Center in Uptown New Orleans. The hurricane knocked out power and running water and sent the temperatures inside above 100 degrees. Still, investigators were surprised at the number of bodies in…