Now Playing: Remembering Shanann Watts: 'Her love for children and friends was amazing'

Now Playing: Breaking down Chris Watts' sham plea for safe return of family

Now Playing: Parents of slain daughter on changes in Chris Watts' behavior: 'Just cold as ice'

Now Playing: Tapes reveal Chris Watts confess to murdering wife

Now Playing: Drivers clamor for cash spilling out of armored truck

Now Playing: News headlines today: Dec. 14, 2018

Now Playing: Tasty treats for your holiday parties

Now Playing: Sister of teacher who cut off student's hair speaks out

Now Playing: Cohen on Trump as president: 'He's a very different individual'

Now Playing: 7-year-old girl dies in US custody

Now Playing: CBS acknowledges confidential $9.5M settlement with actress

Now Playing: Trump knew payments were wrong, Cohen says

Now Playing: New storm brings rain, snow and wind, takes aim at Southeast

Now Playing: President Trump, Michael Cohen's contradicting claims

Now Playing: Mother of American student stabbed to death in Netherlands 'totally in shock'

Now Playing: Family's 'Baby Shark' Christmas lights are epic

Now Playing: A shootout between Indiana police and teen after tipster reported threat

Now Playing: 9-year-old girl in wheelchair 'saved recess'

Now Playing: Woman in critical condition after Pennsylvania bear attack

Now Playing: 1950s-era fighter jet crashes in Hawaii