MSNBC Dateline September 21, 2019 08:21:00
Genetic sequence meaning the dna may have come from paul moore, but the scientists couldn't say it was a 100% match. while the dna didn't match anyone else in the moore family including peter, the fact that paul couldn't be excluded was nothing that would hold up in court. >> it was beyond frustrating. to hear that we have an almost match but we can't say for sure. >> reporter: still, it did give them an idea. one shot at it. might work. >> coming up -- >> that got my attention right away. >> excited doesn't describe. elated maybe. >> this was the smoking gun. >> a killer seemingly revealed by...