Now Playing: Be the Change: Save a Life

Now Playing: Adults abandoned at birth turn to genetic genealogy to find biological family: Part 1

Now Playing: Abandoned as babies, adults find clues in search for birth parents: Part 2

Now Playing: Man abandoned at birth calls woman he believes might be his mother or aunt: Part 5

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Now Playing: 'I felt nervous and worried': 12 boys, coach trapped inside Thai cave: Part 1

Now Playing: Man discovers biological father was living just 20 minutes away

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Now Playing: Rescuers pull the first boys out of the Thai cave: Part 5

Now Playing: The miraculous moment when 12 boys, coach were out of Thai cave: Part 6

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Now Playing: Rescue operators weigh options to save 13 people trapped in a Thai cave: Part 3

Now Playing: The moment when 12 boys, coach trapped inside Thai cave were found alive: Part 2

Now Playing: Head soccer coach says he didn't know team would travel into the Thailand cave

Now Playing: Leanna Taylor's mission to preserve son's legacy: Part 6

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