Now Playing: Hurricane Lane bears down on Hawaiian islands

Now Playing: Hurricane Lane pummels Hawaii

Now Playing: Hawaii braces for Hurricane Lane

Now Playing: Former CDC director turns himself in to authorities on groping charges

Now Playing: Hurricane Lane moves closer to Hawaii

Now Playing: 2 men in Florida are arrested for passing out with kids in the back seat

Now Playing: Missing diver who spent entire night lost at sea had ‘will to survive,’ officials say

Now Playing: Sen. John McCain discontinues cancer treatment

Now Playing: Hurricane Lane churns towards Hawaiian Islands

Now Playing: Chicago principal changes dress code in attempt to curb sexual assault

Now Playing: Woman poses as deputy to break boyfriend out of Arkansas jail

Now Playing: More details in the investigation into Iowa student’s slaying

Now Playing: Former CDC director accused of groping woman in New York: Officials

Now Playing: Hurricane Lane keeps churning near Hawaii

Now Playing: Trump and his AG’s war of words

Now Playing: No criminal charges for officer whose police dog died after being left in hot car

Now Playing: President Trump takes to Twitter with suggestions for Sessions

Now Playing: New details in Mollie Tibbetts murder case

Now Playing: Family staged ‘escape room-style kidnapping’ hoax in Washington park: Authorities

Now Playing: Man who allegedly fired gun at New York City high-rise turns himself in