Now Playing: 11-year-old boy dies while saving friend from icy pond
Now Playing: School bus slides down icy road in Massachusetts
Now Playing: Black Friday synonymous with markdowns and meltdowns
Now Playing: Boat crashes into ferry terminal
Now Playing: Consumers spent $7.8 billion shopping online during Thanksgiving and Black Friday
Now Playing: Tijuana mayor declares humanitarian crisis as 5,000 migrants enter town
Now Playing: Possible gas explosion levels house in Minnesota
Now Playing: New deals on tech gifts, home products and toys
Now Playing: Massive explosion levels house in Minnesota
Now Playing: ‘Thank you for fighting’: Daughter remembers her late mother: Part 6
Now Playing: Murdered radio host’s husband found dead, left behind suicide note: Part 5
Now Playing: Man charged in wife’s shooting death is found dead in jail: Part 4
Now Playing: Murdered radio host’s husband questioned about his past: Part 3
Now Playing: Daughter files a wrongful death suit against stepdad in mom’s death: Part 2
Now Playing: ‘Mom’s dead’: Radio host found gunned down in her own home: Part 1
Now Playing: Tiger Woods, Phil Mickelson tee off in $9 million prize golf match
Now Playing: Nonprofit takes donations and pays off layaway plans for children
Now Playing: Couple finds winning $1.8 million lottery ticket while holiday cleaning
Now Playing: Golden State Warriors Steph Curry involved in multicar accident
Now Playing: Cyber Monday on track to be biggest online shopping day in US history
