True Identity: Cracking the Oldest Kidnapping Cold Case and Finding My Missing Twin

When he was ten years old, Paul Fronczak was snooping around for Christmas presents in a crawl space in his family's Chicago home. There, he found hundreds of old newspaper clippings about the kidnapping of a one-day-old infant in a hospital in 1964. He also learned that, two years later, the boy was found and returned to his family—and that the boy was him.

Nearly fifty years later, Paul, acting on long-held suspicions, took a DNA test that proved he was not the kidnapped boy. In an instant...