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Now Playing: What Would You Do: Student athletes want to kneel during the National Anthem
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Now Playing: Reports of violence against Asian Americans increase across the country
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Now Playing: How did a plane’s engine fall apart minutes into a flight from Denver?
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Now Playing: Lori Vallow's sister speaks out after J.J. Vallow, Tylee Ryan are found dead: Part 11
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Now Playing: Police investigation leads to shocking discovery: Part 10
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Now Playing: Investigators say Alex Cox’s phone points them to missing kids J.J. and Tylee: Part 9
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Now Playing: Alex Cox dies shortly after getting married: Part 8
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Now Playing: Police question Lori Vallow, Chad Daybell about kids’ whereabouts: Part 7
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Now Playing: Chad Daybell's wife dies shortly after frightening encounter: Part 6
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Now Playing: Ex-husband of Lori Vallow’s niece shot at while returning home: Part 5
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Now Playing: Lori Vallow moves to Idaho after husband’s death: Part 4
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Now Playing: Charles Vallow shot and killed by brother-in-law: Part 3