Now Playing: Instant Index: Casting Call for Upcoming Star Wars Movie

Now Playing: 4 dead, several injured in Waffle House shooting

Now Playing: Senate Foreign Relations Committee chair on North Korea, Pompeo nomination and more

Now Playing: Gunman opens fire at Waffle House outside Nashville

Now Playing: Surfer survives shark, bear attacks within months

Now Playing: Student asks most important lady in his life to prom

Now Playing: White Sox player in critical condition after suffering brain aneurysm

Now Playing: Nation says goodbye to first lady Barbara Bush

Now Playing: Thousands pay respect to Barbara Bush at her funeral in Houston

Now Playing: Manhunt in Georgia for convicted killer

Now Playing: Police cam shows officers circling the parking lot where teen died in his car

Now Playing: Possible break in relentlessly cold spring weather

Now Playing: Insurance warning for home owners

Now Playing: Government expands warning over contaminated romaine lettuce

Now Playing: Son gifts father with photo album of some of their best times together

Now Playing: Video shows bullet-ridden vehicle after police shooting

Now Playing: Celebrating the life and legacy of Barbara Bush

Now Playing: Jeb Bush delivers a eulogy at his mother Barbara Bush's funeral

Now Playing: Barbara Bush remembered as 'strong, fun and feisty'

Now Playing: Presidential historian Jon Meacham pays tribute to Barbara Bush