Now Playing: RAW VIDEO: Arkansas Family Rescued From Tornado Wreckage

Now Playing: How to Survive a Tornado When Caught on the Highway

Now Playing: Vilonia, Ark., Hit Hard by Tornado

Now Playing: Deadly Oklahoma Tornado Caught on Tape

Now Playing: Stripping to Pay For College

Now Playing: How Michael Jackson's Billboard Performance Was Pulled Off

Now Playing: Is a Gluten-Free Diet Really Helpful?

Now Playing: Shelly Sterling: Donald Sterling Has 'Onset of Dementia'

Now Playing: Hidden Cameras Reveal How Pickpockets Snag Valuables

Now Playing: Waitresses on sexual harassment they say they face at work from customers, managers

Now Playing: A look at what Meghan Markle's life was like before meeting Prince Harry

Now Playing: The search for answers after Southwest plane's emergency landing

Now Playing: What two men say happened when they were arrested at Philadelphia Starbucks

Now Playing: Kerry Washington on the 'Scandal' series finale and the show's legacy

Now Playing: What's one word you would use to describe James Comey?

Now Playing: What to know about 'hero pilot' who safely landed Southwest flight

Now Playing: Stormy Daniels speaks out on Trump, shows sketch of man she says threatened her

Now Playing: What happened when Southwest engine failed midair, forcing emergency landing

Now Playing: Remembering former first lady Barbara Bush

Now Playing: Kerry Washington on how Tony Goldwyn supported her leading 'Scandal'