Now Playing: Cyberbullying: Moms Fight Back

Now Playing: Grandparents convicted of kidnapping in international custody case

Now Playing: Airline passenger arrested after alleged midair tirade over alcohol

Now Playing: White House continues preparation for possible North Korea summit

Now Playing: Santa Fe school-shooting victim surprised by visit from Justin Timberlake

Now Playing: Memorial Day weekend grilling tips from Guy Fieri

Now Playing: New details about what's next for the Duke and Duchess of Sussex

Now Playing: Weinstein released on bail after arrest on charges of rape, sexual abuse

Now Playing: Heroic teacher tackled middle-school shooter after running toward bullets

Now Playing: 'GMA' Hot List: NBA's Sterling Brown speaks out after dramatic police incident

Now Playing: Designer replicates Meghan's bridal dress within 22 hours of royal wedding

Now Playing: Dig your toes in the sand at the top beach in the U.S.

Now Playing: This pixelated hair is mesmerizing

Now Playing: New mega-ship's wow factors light up Carnival Horizon

Now Playing: Explosion injures 15 at Toronto restaurant

Now Playing: 5 celebrities explain why Asian representation is important

Now Playing: Best and worst times to hit the road this weekend

Now Playing: Sting and Shaggy perform 'Englishman in New York'

Now Playing: What's next for Harvey Weinstein

Now Playing: Sting and Shaggy perform 'Just One Lifetime' live in Central Park