Defense witness: Chad Daybell's DNA not found on any tested

Chad Daybell's defense called on Dr. Greg Hampikian, known for his work in the exoneration of Amanda Knox. He testified that his DNA was not found on any tested samples linked to JJ Vallow's murder.

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Arizona , United States , Idaho , Justin Lum , Greg Hampikian , Patrick Eller , Steven Boyce , Tylee Ryan , Lori Vallow , John Prior , Amanda Knox , Alex Cox , , Chad Daybell , Forensic Justice Project , Idaho Judge Steven Boyce ,