His extensive memory allows him to recall almost any news event and anything he has experienced, including specific dates and even the weather.

"I was sort of a human Google for my family. I've always been able to recall things," the 51-year-old said on "Good Morning America" in his first television interview.

Williams' type of detailed, exhaustive memory is called hyperthymesia and few known cases exist. Brad's brain scans are now being studied by neuroscientists at the Center for the Neurobiology of Learning and Memory at the Univeristy of California, Irvine.

Eric Williams' is intrigued about the inner workings of his brother's mind. Eric Williams is in the process of making a documentary about Brad, appropriately titled "Unforgettable."

In the film, which hasn't been completed yet, Williams takes on a person who is Googling answers to 20 questions.

He answered 18 of them correctly and was 11 minutes faster than the searcher.