What happened to Carolyn Bessette Kennedy’s clothes?

On a fall day in 1998, Carolyn Bessette Kennedy stepped out of her Tribeca loft in a camel Prada coat, blue jeans and a slicked-back ponytail to walk her dog, Friday. A paparazzi photographer caught the moment, and the image has been circulating on mood boards ever since.

Twenty-eight years later, that coat sold at auct...