Now Playing: Tornado outbreak hits Midwest as dangerous heat builds across the US
Now Playing: Tropical Storm Fred forms near Puerto Rico
Now Playing: Friends rescued from flooding elevator during storm
Now Playing: ABC News Live Prime: Wednesday, August 11, 2021
Now Playing: Shark sightings reported at New York beach
Now Playing: 2 high school basketball coaches charged with murder
Now Playing: New York Lt. Gov. Kathy Hochul: ‘I’m ready for this.’
Now Playing: US averaging more than 110,000 new daily COVID-19 cases
Now Playing: Florida pastor urges vaccinations after losing 8 congregants to COVID
Now Playing: Fauci calls hospital surge ‘entirely predictable and entirely preventable’
Now Playing: By the Numbers: Rising prices may be leveling off
Now Playing: The Rundown: Top headlines today: Aug. 11, 2021
Now Playing: Bear wanders into Southern California supermarket
Now Playing: The Breakdown: US COVID-19 hospitalizations at highest level in 6 months
Now Playing: Texas hospitals overwhelmed with COVID-19 cases up 91% over past 2 weeks
Now Playing: Arrest warrants signed for Texas Democrats who left state to block election bill
Now Playing: New York Lt. Gov. Kathy Hochul prepared to take over after Cuomo resignation
Now Playing: Astronauts compete in 1st ‘Space Olympics’
Now Playing: What you need to know about the COVID-19 delta variant and kids
