Now Playing: One year after Maria: On the ground in Puerto Rico as recovery efforts continue

Now Playing: Recent murders highlight dangers female joggers could face while on a run

Now Playing: More than just a tourist destination: Bolivia's salt flats are key to its future

Now Playing: Kidnapping survivor Elizabeth Smart's captor Wanda Barzee to be released from prison

Now Playing: Surgeon and woman accused of drugging, raping two women

Now Playing: What Brett Kavanaugh sexual assault allegations could mean for nominee

Now Playing: Sally Field reflects on her past in new memoir, 'In Pieces'

Now Playing: Aretha Franklin: Defining what it meant to be a diva: Part 2

Now Playing: A final goodbye to Aretha Franklin: Celebrities gather for funeral celebration

Now Playing: Gwyneth Paltrow's Goop site agrees to pay $145K over unsubstantiated product claims

Now Playing: Mom, step-dad open up about daughter's tragic murder by her own father

Now Playing: Man who needs bone marrow transplant searches for birth mother: Part 1

Now Playing: Mother meets the son she gave up for adoption 45 years ago: Part 2

Now Playing: Kayden Mancuso's mother: 'I miss every single little thing about her'

Now Playing: Murder-suicide suspect's sister says she hopes he will 'rot in hell for what he did'

Now Playing: Harrowing body cam footage shows inside of life-threatening 2017 Santa Rosa fire

Now Playing: Police body cams capture horrific moments inside 2017 Santa Rosa inferno: Part 1

Now Playing: The 2017 Santa Rosa fire aftermath was 'end-of-the-world type stuff': Part 2

Now Playing: What branding social activism could mean for Nike's business

Now Playing: A range of reactions to Nike's 'Just Do It' Colin Kaepernick ad