Now Playing: Hurricane Maria by the numbers

Now Playing: Mourners line streets, highways for say farewell to McCain

Now Playing: Multiple fatalities confirmed after bus crashes on NM highway

Now Playing: Surprise! 10-year-old learns she’s being adopted for her birthday

Now Playing: Drivers making Labor Day getaway will feel some pain at the pump

Now Playing: FBI probing possible civil rights violations in pair of violent arrests in Ariz.

Now Playing: Search for woman and daughter who disappeared on Calif. camping trip

Now Playing: Longtime dispute between NH small-town neighbors takes deadly turn

Now Playing: 23-year-old pretended to be a doctor at children’s hospital: Authorities

Now Playing: Trump team sought to buy bad stories from Enquirer: Report

Now Playing: Hurricane season heats up as US heads into Labor Day weekend

Now Playing: 10 workers buried after explosion at Chicago water plant

Now Playing: Couple ordered to hand over remainder of $400K they raised for a homeless veteran

Now Playing: Anti-Semitic vandal attacked map software, labeled New York City with slur

Now Playing: Bus crash in New Mexico

Now Playing: Multiple fatalities reported in New Mexico bus crash

Now Playing: Man invokes ‘enemy of the people’ in threats of violence against newspaper

Now Playing: Grandmother arrested for homicide after grandson dies in hot car

Now Playing: ‘GMA’ Hot List: Woman loses 55 pounds to donate kidney to dad

Now Playing: Large lizard is keeping Florida trappers on their toes