Detailed text transcripts for TV channel - CNN - 20181223:02:29:00
Going to have to let you go. >> one month after the nancy grace show john mann changed his mind about the dna. >> he decided on his own to do some dna testing but he did it without the involvement of the defense. he boxed up some items and sent them off for testing and told the lab what to test. >> the first items mann sent for testing included a set of human hairs found in twila's hands. >> and the mitochondrial dna on those hairs comes back to twila busby's mitochondrial line. >> this meant the hairs belonged to someone on twila's mother's side of her family. >> they didn't like hairs from e...