Daniel Rivero

In September 2014, Norma Healey, a widow from Texas, took a weeklong Royal Caribbean cruise with a pack of younger friends. They'd leave Galveston, Texas, and stop in Cozumel, Grand Cayman, and Jamaica. Healey, a rouge-haired, blue-eyed 75-year-old of medium build and a skin tone that "doesn't do well in...