-
Now Playing: Knox in 60 Seconds
-
Now Playing: Amanda Knox Trial: A Producer's Perspective
-
Now Playing: Table Mountain burns, Chauvin verdict, Prince Philip’s funeral: Week in Photos
-
Now Playing: 11-year-old Colombian activist plants hundreds of trees for Earth Day
-
Now Playing: Temple sets world record for candles lit on Earth Day
-
Now Playing: New photo of Prince Louis released to celebrate 3rd birthday
-
Now Playing: Urgent search continues for missing submarine with 53 sailors aboard
-
Now Playing: SpaceX successfully launches 4 astronauts into space on recycled rocket
-
Now Playing: Senators unveil immigration proposal to deal with surge on Southern border
-
Now Playing: ABC News Live Prime: Thursday, April 22, 2021
-
Now Playing: Central American drought creates climate change refugees
-
Now Playing: The Rundown: Top headlines today: April 22, 2021
-
Now Playing: Aurora shines over Alberta night sky
-
Now Playing: NASA helicopter makes 2nd flight on Mars
-
Now Playing: Urgent search continues for missing submarine
-
Now Playing: Climate change permanently damages some communities
-
Now Playing: Earth Day, rooftop yoga, Navalny supporters protest: World in Photos, April 22
-
Now Playing: Drone footage shows massive floating solar farm
-
Now Playing: Bindi Irwin shares details on her road to motherhood
-
Now Playing: Submarine with 53 people aboard goes missing