Now Playing: Mysterious home explosion kills 1; reward offered

Now Playing: Powerful home explosion caught on camera in California

Now Playing: Domestic violence call led to standoff, deadly explosion

Now Playing: Korean war vets' reflections on Trump meeting Kim Jong Un

Now Playing: Juju Chang: 'Impossible to overstate how big a deal this is'

Now Playing: With Trump-Kim summit approaching, all eyes on Singapore

Now Playing: Suspect in police shooting barricaded in home with 4 children: Police

Now Playing: Vacation cabin explodes, killing family, including 3 children: Police

Now Playing: Anthony Bourdain's ex-wife posts 1st public comments after his death

Now Playing: Hurricane Bud about 200 miles off the coast of Mexico

Now Playing: Family of five dead after explosion near summer cabin

Now Playing: Fifth-grade student pleads with school board to put an end to bullying

Now Playing: Family seeks justice after woman's body found near apparent makeshift coffin

Now Playing: Audio released of police interrogating suspected Tampa serial killer

Now Playing: Farrah Fawcett's son charged with attempted murder

Now Playing: Drunk garbage truck driver plows into 9 cars: Police

Now Playing: Woman says cellphone burst into flames, destroyed car while she was driving

Now Playing: Air Force officer found after 35 years

Now Playing: Teen kidnapped at birth speaks out as woman who raised her goes to jail